Fastest way to get better from a cold!

The Eye Show | Dr. Sandra Lora Cremers, MD, FACS

How to Kill a Cold Before It Kills Your Week

The Science-Backed Protocol — What the Research Actually Says

🩺  Dr. Sandra Lora Cremers, MD, FACS  |  Visionary Eye Doctors, Rockville, MD  |  Board-Certified Ophthalmologist & Surgeon

```

A dear friend is sick. We've all been there — stuffy nose, feeling horrible, unable to concentrate, wanting to just be in bed, but having tons of work to do.

As a mother of six children, I've had plenty of experience being sick while needing to keep going. Over the years I've used every protocol below on myself and my own family — and I can tell you from personal experience that they actually decrease how sick I get and how long it lasts. But I'm a surgeon, and I don't just rely on instinct. I wanted to know: what does the published, peer-reviewed literature actually say? Let me break it all down.

📺 Watch My Videos on This Protocol

I've covered many of these topics in depth on The Eye Show. Check out these episodes:

▶  The Eye Show — Episode on Cold & Immune Protocol

▶  The Eye Show — Episode on Upper Respiratory Health

First: Understand What You're Fighting

Most colds are caused by rhinoviruses — non-enveloped viruses that replicate optimally at ~33°C, which happens to be the exact temperature of your nasal passages. They establish infection in your nasal epithelium, then spread. Your job, the moment you feel that first tingle, is to reduce viral load before it explodes. Every intervention below needs to start as early as possible — ideally within the first 24–48 hours.

📊 Evidence Summary: What Actually Works?

Intervention	Evidence	Recommendation
💧 Saline Nasal Irrigation	STRONG ✅	Start within 1 hour. 4–6x/day, hypertonic solution. Do this first.
🟠 Betadine 0.5% Gargle/Nasal	STRONG ✅	4–6x/day. Avoid if thyroid disease. Broad-spectrum virucidal.
🟡 Zinc Acetate Lozenges	STRONG ✅	>75mg/day. Start <24 hrs. No citric acid. Shortens cold 33–42%.
🍲 Chicken Soup	MODERATE ✅	Real published science. Cysteine + anti-inflammatory. Homemade best.
♨️ Hot Shower / Steam	MODERATE ⚠️	Symptom relief. Temporary nasal clearance. Not curative alone.
🧖 Sauna	WEAK ⚠️	Prevention benefit with regular use. Acute use: mostly symptomatic.
🍊 Vitamin C	MODERATE ✅	500–1000mg at onset. Modest reduction in severity/duration.
🚫 Alcohol Gargle (Bacardi)	NO ❌	Rhinovirus is non-enveloped. Alcohol largely ineffective. Damages mucosa.
🚫 Alcohol Up the Nose	DANGEROUS ❌	Mucosal damage, cilia destruction. Absolutely do NOT do this.
🚫 Deliberate Sneezing	NO EVIDENCE ❌	No studies. Just aerosolizes virus. No plausible mechanism.

1. 💧 Saline Nasal Irrigation — The #1 Weapon

VERDICT: STRONG evidence. Start immediately. This is your #1 weapon.

This one is shockingly underappreciated — and I can't say it loudly enough: saline nasal rinses are one of the most evidence-backed interventions we have for upper respiratory infections.

A landmark 2019 pilot RCT published in Scientific Reports (Ramalingam et al.) tested hypertonic saline nasal irrigation and gargling in adults within 48 hours of cold onset — result: significantly reduced symptom duration and viral shedding, with a biological mechanism involving a chloride-ion innate antiviral response in nasal epithelial cells. A 2023 multidisciplinary review in Frontiers in Public Health confirmed saline irrigation reduces nasopharyngeal viral loads, reduces household transmission, and decreases the need for antibiotics. Dr. Amy Baxter's 2022 study found twice-daily saline rinsing in COVID patients significantly reduced severity and hospitalization — with saline alone, no additives required.

✅ How to Do It Correctly

• Use distilled or boiled-then-cooled water ONLY — never tap water directly (brain infection risk)
• Mix ½ tsp non-iodized salt + ½ tsp baking soda in 1 cup (8 oz) warm sterile water
• Use a Neti pot or squeeze bottle (NeilMed SinuRinse works great)
• 4–6 times per day at the first sign of illness — not just morning and night
• Gargle with the same solution after each irrigation
• Continue throughout the entire illness

2. 🟠 Betadine (Povidone-Iodine) Gargle & Nasal Spray

VERDICT: STRONG virucidal evidence. Use carefully — contraindicated in thyroid disease.

Povidone-iodine (PVP-I) inactivates virtually every tested virus at concentrations as low as 0.5%, with contact times as short as 15 seconds. Crucially, there is no known viral resistance development to povidone-iodine — a remarkable property.

Key studies: A 2021 RCT in JAMA Otolaryngology (Guenezan et al.) found 0.5% PVP-I significantly reduced COVID viral load. A 2024 Phase II RCT in The Laryngoscope found 20 doses of Nasodine over 2.5 days eliminated viable virus from nasal passages. A 2025 Phase III RCT in Frontiers in Medicine found Nasodine outperformed saline spray on all cold severity outcomes.

⚠️ Critical Contraindications — Screen Before Using

• DO NOT USE if you have any thyroid disease or take thyroid medication
• DO NOT USE if pregnant or breastfeeding
• DO NOT USE if you have an iodine allergy

✅ Protocol

• Gargle: Dilute Betadine to 0.5% (1:10 dilution of standard 10% Betadine), gargle 30–60 seconds, 4–6x/day
• Nasal: Use commercial 0.5% PVP-I nasal spray (Nasodine) — not undiluted Betadine in the nose
• Start at first symptom, use 4–8x daily

3. 🟡 Zinc Lozenges — The Most Underutilized Intervention

VERDICT: STRONG evidence. Shortens colds 33–42% in adults. Must start within 24 hours. Formulation is everything.

This is one of the most studied interventions in cold medicine. A 2017 meta-analysis of 7 high-dose RCTs found a 33% reduction in cold duration (95% CI: 21–45%). Zinc acetate specifically showed a 40% reduction. A 2017 individual patient data meta-analysis in Open Forum Infectious Diseases found a roughly 3-fold increase in recovery rate.

A 2024 reanalysis of Cochrane data (Hemilä, Frontiers in Medicine) identified significant methodological problems in the 2024 Cochrane review — when zinc lozenges are analyzed correctly, the result is a 37% reduction in cold duration (p=10⁻⁹). That is statistically rock-solid.

⚠️ Critical Rules — Most People Do This Wrong

• Dose matters: Must be >75 mg elemental zinc per day — low-dose studies show zero effect
• Formulation matters: NO citric acid, tartaric acid, mannitol, or sorbitol — these bind zinc and kill the effect
• Timing matters: Must start within 24 hours of first symptom
• Zinc acetate is slightly superior to zinc gluconate (40% vs 28% reduction)
• Do NOT exceed 100 mg/day for extended use

✅ Protocol

• Zinc acetate lozenges, 13–24 mg elemental zinc each, every 2–3 hours while awake
• Dissolve slowly in mouth — don't chew or swallow whole
• Total: >75 mg elemental zinc per day

4. 🍲 Chicken Soup — Grandma Had the Science Right

VERDICT: Genuine published evidence. Real mechanisms. Homemade beats canned.

A classic 1978 study in Chest (Saketkhoo et al.) measured nasal mucus velocity — hot chicken soup significantly outperformed hot water alone, and both hot liquids dramatically beat cold water. A 2000 landmark study in Chest (Rennard et al.) showed chicken soup inhibits neutrophil chemotaxis in vitro — reducing the excessive inflammation causing your symptoms. A 2025 systematic review in Nutrients confirmed soup reduces ARTI severity and in one study shortened illness by 1–2.5 days.

✅ Why It Works

• Cysteine released from chicken reduces mucus viscosity — similar to N-acetylcysteine used clinically
• Carnosine (chicken peptide) — anti-inflammatory and antioxidant
• Steam improves nasal airflow and raises nasal passage temperature
• Garlic & onions — sulfur compounds with antimicrobial activity
• Broth hydrates and restores electrolytes
• Note: Homemade with real vegetables far outperforms canned.

5. ♨️ Sauna / Hot Shower / Steam — Symptom Relief, Not a Cure

VERDICT: Mixed evidence for cure. Real evidence for symptomatic relief. Know the limits.

The data is genuinely mixed. A 2010 RCT found inhaling hot sauna air did not significantly reduce cold symptom severity. A 2017 Cochrane analysis of 6 RCTs on steam inhalation found 3 showing benefit, 3 not. However — rhinoviruses replicate at 33°C but are inhibited at 37–39°C. A 1989 BMJ study (Tyrrell et al.) showed local hyperthermia benefited natural and experimental colds. A 1991 RCT found regular sauna use over 6 months reduced cold incidence. A 2016 Dutch RCT found alternating hot/cold showers reduced sick days by 29%.

• Hot showers with steam: real temporary relief — breathe it in deeply
• Keep fever under 103°F — fever is part of your immune defense
• Avoid sauna if: fever >101°F, chest congestion, breathing difficulty
• Hot/cold contrast: fine if you already practice this — not for beginners when very ill

6. 🚫 What Doesn't Work — Myths Debunked

High-Proof Alcohol (Bacardi, Vodka Gargle, Alcohol in the Nose)

VERDICT: No evidence of benefit. May cause real harm.

Rhinovirus — the cause of most common colds — is a non-enveloped virus. Research published in Journal of Medical Virology (2012) found ethanol hand rubs were actually inferior to soap and water for removing rhinovirus from hands. A 2020 PMC review confirmed most non-enveloped viruses are only partially reduced by ethanol. Alcohol is effective against enveloped viruses (influenza, COVID) — but rhinovirus has no lipid envelope.

Putting alcohol up the nose: The nasal mucosa is highly absorptive and sensitive. High-proof alcohol causes mucosal injury and cilia damage — impairing the exact defense system you need to fight the virus. This is actively counterproductive.

Deliberate Sneezing to "Expel Viral Load"

VERDICT: No published evidence. Aerosolizes virus. No plausible mechanism.

No published RCT or controlled study has examined deliberate sneezing as a therapeutic intervention. Sneezing clears the nasal passage temporarily, but viral replication is occurring in the epithelial tissue, not the nasal air space. If you want to clear viral load, saline irrigation is the evidence-based method.

🚨 The Rapid Protocol: What To Do In The First 24 Hours

I have used every one of these interventions myself — including being sick with six kids at home and needing to get back to work. This is the exact order I follow.

⏰ HOUR 1	Start saline nasal irrigation — 4–6x today, hypertonic solution Begin zinc acetate lozenges (>75 mg/day total, every 2–3 hours while awake) If no thyroid issues: begin 0.5% Betadine gargle 4–6x daily
⏳ HOURS 1–6	Make (or obtain) real chicken soup — drink throughout the day Stay hydrated — 8–10 glasses warm fluids Sleep as much as possible — proven to enhance immune response
🔄 ONGOING	Keep fever under 103°F — don't rush to suppress it Hot shower morning and evening for steam therapy Vitamin C 500–1000 mg with meals. Avoid alcohol and processed foods.

📱 Quick Text to Send a Sick Friend

You have a cold? Here's Dr. Cremers' protocol — I use this myself:

(1) START SALINE NASAL RINSES NOW — 4–6x today, hypertonic solution. #1 research-backed step. Neti pot or NeilMed bottle.

(2) ZINC ACETATE LOZENGES — start within 24 hrs, every 2–3 hrs, >75mg zinc/day. NO citric acid in the lozenge. Shortens cold ~33%.

(3) BETADINE 0.5% GARGLE — NOT if you have thyroid disease. Kills viruses on contact. 4–6x/day.

(4) REAL CHICKEN SOUP — genuine evidence. Homemade with garlic/onion/veg.

(5) SLEEP. Proven 2.94x infection risk with <7 hrs/night.

NO booze gargle — rhinovirus is non-enveloped, alcohol won't kill it. NO alcohol up your nose — damages your mucosa. NO deliberate sneezing — just spreads virus.

Watch my videos: Episode 1  |  Episode 2

📚 Key Published References

1. Ramalingam S et al. Hypertonic saline nasal irrigation and gargling for common cold. Scientific Reports. 2019.
2. Baxter AL et al. Rapid initiation of nasal saline irrigation to reduce severity in COVID+ outpatients. Ear Nose Throat J. 2022.
3. Guenezan J et al. Povidone iodine mouthwash, gargle, and nasal spray for COVID-19. JAMA Otolaryngology–Head & Neck Surgery. 2021.
4. Friedland P, Tucker S. Phase II trial of 0.5% povidone-iodine nasal spray. Laryngoscope. 2024.
5. Polasek TM, Friedland PL. Povidone-iodine nasal spray (Nasodine) Phase III RCT. Frontiers in Medicine. 2025.
6. Hemilä H et al. Zinc acetate lozenges and the common cold. Open Respiratory Medicine Journal. 2017.
7. Hemilä H. Shortcomings in the 2024 Cochrane review on zinc for the common cold. Frontiers in Medicine. 2024.
8. Saketkhoo K et al. Effects of drinking hot water, cold water, and chicken soup on nasal mucus velocity. Chest. 1978.
9. Rennard BO et al. Chicken soup inhibits neutrophil chemotaxis in vitro. Chest. 2000.
10. Huijghebaert S et al. Saline nasal irrigation and gargling in COVID-19. Frontiers in Public Health. 2023.
11. Gandhi S et al. Nasal irrigation for COVID-19: systematic review. Laryngoscope. 2025.
12. Cohen S et al. Sleep habits and susceptibility to the common cold. JAMA. 2009.
13. Eggers M et al. Virucidal efficacy of PVP-I against respiratory pathogens. Infectious Diseases and Therapy. 2018.
14. Heikkinen T et al. Visiting a sauna: does inhaling hot dry air reduce common cold symptoms? Medical Journal of Australia. 2010.

```

This post is for educational purposes only. Always consult your physician before starting any new treatment protocol.

Dr. Sandra Lora Cremers, MD, FACS  |  Visionary Eye Doctors, Rockville, MD  |  ▶ The Eye Show

The Eye Show | Dr. Sandra Lora Cremers, MD, FACS

How to Kill a Cold Before It Kills Your Week

The Science-Backed Protocol — What the Research Actually Says

🩺  Dr. Sandra Lora Cremers, MD, FACS  |  Visionary Eye Doctors, Rockville, MD  |  Board-Certified Ophthalmologist & Surgeon

```

A dear friend is sick. We've all been there — stuffy nose, feeling horrible, unable to concentrate, wanting to just be in bed, but having tons of work to do.

As a mother of six children, I've had plenty of experience being sick while needing to keep going. Over the years I've used every protocol below on myself and my own family — and I can tell you from personal experience that they actually decrease how sick I get and how long it lasts. But I'm a surgeon, and I don't just rely on instinct. I wanted to know: what does the published, peer-reviewed literature actually say? Let me break it all down.

📺 Watch My Videos on This Protocol

I've covered many of these topics in depth on The Eye Show. Check out these episodes:

▶  The Eye Show — Episode on Cold & Immune Protocol

▶  The Eye Show — Episode on Upper Respiratory Health

First: Understand What You're Fighting

Most colds are caused by rhinoviruses — non-enveloped viruses that replicate optimally at ~33°C, which happens to be the exact temperature of your nasal passages. They establish infection in your nasal epithelium, then spread. Your job, the moment you feel that first tingle, is to reduce viral load before it explodes. Every intervention below needs to start as early as possible — ideally within the first 24–48 hours.

📊 Evidence Summary: What Actually Works?

Intervention	Evidence	Recommendation
💧 Saline Nasal Irrigation	STRONG ✅	Start within 1 hour. 4–6x/day, hypertonic solution. Do this first.
🟠 Betadine 0.5% Gargle/Nasal	STRONG ✅	4–6x/day. Avoid if thyroid disease. Broad-spectrum virucidal.
🟡 Zinc Acetate Lozenges	STRONG ✅	>75mg/day. Start <24 hrs. No citric acid. Shortens cold 33–42%.
🍲 Chicken Soup	MODERATE ✅	Real published science. Cysteine + anti-inflammatory. Homemade best.
♨️ Hot Shower / Steam	MODERATE ⚠️	Symptom relief. Temporary nasal clearance. Not curative alone.
🧖 Sauna	WEAK ⚠️	Prevention benefit with regular use. Acute use: mostly symptomatic.
🍊 Vitamin C	MODERATE ✅	500–1000mg at onset. Modest reduction in severity/duration.
🚫 Alcohol Gargle (Bacardi)	NO ❌	Rhinovirus is non-enveloped. Alcohol largely ineffective. Damages mucosa.
🚫 Alcohol Up the Nose	DANGEROUS ❌	Mucosal damage, cilia destruction. Absolutely do NOT do this.
🚫 Deliberate Sneezing	NO EVIDENCE ❌	No studies. Just aerosolizes virus. No plausible mechanism.

1. 💧 Saline Nasal Irrigation — The #1 Weapon

VERDICT: STRONG evidence. Start immediately. This is your #1 weapon.

This one is shockingly underappreciated — and I can't say it loudly enough: saline nasal rinses are one of the most evidence-backed interventions we have for upper respiratory infections.

A landmark 2019 pilot RCT published in Scientific Reports (Ramalingam et al.) tested hypertonic saline nasal irrigation and gargling in adults within 48 hours of cold onset — result: significantly reduced symptom duration and viral shedding, with a biological mechanism involving a chloride-ion innate antiviral response in nasal epithelial cells. A 2023 multidisciplinary review in Frontiers in Public Health confirmed saline irrigation reduces nasopharyngeal viral loads, reduces household transmission, and decreases the need for antibiotics. Dr. Amy Baxter's 2022 study found twice-daily saline rinsing in COVID patients significantly reduced severity and hospitalization — with saline alone, no additives required.

✅ How to Do It Correctly

• Use distilled or boiled-then-cooled water ONLY — never tap water directly (brain infection risk)
• Mix ½ tsp non-iodized salt + ½ tsp baking soda in 1 cup (8 oz) warm sterile water
• Use a Neti pot or squeeze bottle (NeilMed SinuRinse works great)
• 4–6 times per day at the first sign of illness — not just morning and night
• Gargle with the same solution after each irrigation
• Continue throughout the entire illness

2. 🟠 Betadine (Povidone-Iodine) Gargle & Nasal Spray

VERDICT: STRONG virucidal evidence. Use carefully — contraindicated in thyroid disease.

Povidone-iodine (PVP-I) inactivates virtually every tested virus at concentrations as low as 0.5%, with contact times as short as 15 seconds. Crucially, there is no known viral resistance development to povidone-iodine — a remarkable property.

Key studies: A 2021 RCT in JAMA Otolaryngology (Guenezan et al.) found 0.5% PVP-I significantly reduced COVID viral load. A 2024 Phase II RCT in The Laryngoscope found 20 doses of Nasodine over 2.5 days eliminated viable virus from nasal passages. A 2025 Phase III RCT in Frontiers in Medicine found Nasodine outperformed saline spray on all cold severity outcomes.

⚠️ Critical Contraindications — Screen Before Using

• DO NOT USE if you have any thyroid disease or take thyroid medication
• DO NOT USE if pregnant or breastfeeding
• DO NOT USE if you have an iodine allergy

✅ Protocol

• Gargle: Dilute Betadine to 0.5% (1:10 dilution of standard 10% Betadine), gargle 30–60 seconds, 4–6x/day
• Nasal: Use commercial 0.5% PVP-I nasal spray (Nasodine) — not undiluted Betadine in the nose
• Start at first symptom, use 4–8x daily

3. 🟡 Zinc Lozenges — The Most Underutilized Intervention

VERDICT: STRONG evidence. Shortens colds 33–42% in adults. Must start within 24 hours. Formulation is everything.

This is one of the most studied interventions in cold medicine. A 2017 meta-analysis of 7 high-dose RCTs found a 33% reduction in cold duration (95% CI: 21–45%). Zinc acetate specifically showed a 40% reduction. A 2017 individual patient data meta-analysis in Open Forum Infectious Diseases found a roughly 3-fold increase in recovery rate.

A 2024 reanalysis of Cochrane data (Hemilä, Frontiers in Medicine) identified significant methodological problems in the 2024 Cochrane review — when zinc lozenges are analyzed correctly, the result is a 37% reduction in cold duration (p=10⁻⁹). That is statistically rock-solid.

⚠️ Critical Rules — Most People Do This Wrong

• Dose matters: Must be >75 mg elemental zinc per day — low-dose studies show zero effect
• Formulation matters: NO citric acid, tartaric acid, mannitol, or sorbitol — these bind zinc and kill the effect
• Timing matters: Must start within 24 hours of first symptom
• Zinc acetate is slightly superior to zinc gluconate (40% vs 28% reduction)
• Do NOT exceed 100 mg/day for extended use

✅ Protocol

• Zinc acetate lozenges, 13–24 mg elemental zinc each, every 2–3 hours while awake
• Dissolve slowly in mouth — don't chew or swallow whole
• Total: >75 mg elemental zinc per day

4. 🍲 Chicken Soup — Grandma Had the Science Right

VERDICT: Genuine published evidence. Real mechanisms. Homemade beats canned.

A classic 1978 study in Chest (Saketkhoo et al.) measured nasal mucus velocity — hot chicken soup significantly outperformed hot water alone, and both hot liquids dramatically beat cold water. A 2000 landmark study in Chest (Rennard et al.) showed chicken soup inhibits neutrophil chemotaxis in vitro — reducing the excessive inflammation causing your symptoms. A 2025 systematic review in Nutrients confirmed soup reduces ARTI severity and in one study shortened illness by 1–2.5 days.

✅ Why It Works

• Cysteine released from chicken reduces mucus viscosity — similar to N-acetylcysteine used clinically
• Carnosine (chicken peptide) — anti-inflammatory and antioxidant
• Steam improves nasal airflow and raises nasal passage temperature
• Garlic & onions — sulfur compounds with antimicrobial activity
• Broth hydrates and restores electrolytes
• Note: Homemade with real vegetables far outperforms canned.

5. ♨️ Sauna / Hot Shower / Steam — Symptom Relief, Not a Cure

VERDICT: Mixed evidence for cure. Real evidence for symptomatic relief. Know the limits.

The data is genuinely mixed. A 2010 RCT found inhaling hot sauna air did not significantly reduce cold symptom severity. A 2017 Cochrane analysis of 6 RCTs on steam inhalation found 3 showing benefit, 3 not. However — rhinoviruses replicate at 33°C but are inhibited at 37–39°C. A 1989 BMJ study (Tyrrell et al.) showed local hyperthermia benefited natural and experimental colds. A 1991 RCT found regular sauna use over 6 months reduced cold incidence. A 2016 Dutch RCT found alternating hot/cold showers reduced sick days by 29%.

• Hot showers with steam: real temporary relief — breathe it in deeply
• Keep fever under 103°F — fever is part of your immune defense
• Avoid sauna if: fever >101°F, chest congestion, breathing difficulty
• Hot/cold contrast: fine if you already practice this — not for beginners when very ill

6. 🚫 What Doesn't Work — Myths Debunked

High-Proof Alcohol (Bacardi, Vodka Gargle, Alcohol in the Nose)

VERDICT: No evidence of benefit. May cause real harm.

Rhinovirus — the cause of most common colds — is a non-enveloped virus. Research published in Journal of Medical Virology (2012) found ethanol hand rubs were actually inferior to soap and water for removing rhinovirus from hands. A 2020 PMC review confirmed most non-enveloped viruses are only partially reduced by ethanol. Alcohol is effective against enveloped viruses (influenza, COVID) — but rhinovirus has no lipid envelope.

Putting alcohol up the nose: The nasal mucosa is highly absorptive and sensitive. High-proof alcohol causes mucosal injury and cilia damage — impairing the exact defense system you need to fight the virus. This is actively counterproductive.

Deliberate Sneezing to "Expel Viral Load"

VERDICT: No published evidence. Aerosolizes virus. No plausible mechanism.

No published RCT or controlled study has examined deliberate sneezing as a therapeutic intervention. Sneezing clears the nasal passage temporarily, but viral replication is occurring in the epithelial tissue, not the nasal air space. If you want to clear viral load, saline irrigation is the evidence-based method.

🚨 The Rapid Protocol: What To Do In The First 24 Hours

I have used every one of these interventions myself — including being sick with six kids at home and needing to get back to work. This is the exact order I follow.

⏰ HOUR 1	Start saline nasal irrigation — 4–6x today, hypertonic solution Begin zinc acetate lozenges (>75 mg/day total, every 2–3 hours while awake) If no thyroid issues: begin 0.5% Betadine gargle 4–6x daily
⏳ HOURS 1–6	Make (or obtain) real chicken soup — drink throughout the day Stay hydrated — 8–10 glasses warm fluids Sleep as much as possible — proven to enhance immune response
🔄 ONGOING	Keep fever under 103°F — don't rush to suppress it Hot shower morning and evening for steam therapy Vitamin C 500–1000 mg with meals. Avoid alcohol and processed foods.

📱 Quick Text to Send a Sick Friend

You have a cold? Here's Dr. Cremers' protocol — I use this myself:

(1) START SALINE NASAL RINSES NOW — 4–6x today, hypertonic solution. #1 research-backed step. Neti pot or NeilMed bottle.

(2) ZINC ACETATE LOZENGES — start within 24 hrs, every 2–3 hrs, >75mg zinc/day. NO citric acid in the lozenge. Shortens cold ~33%.

(3) BETADINE 0.5% GARGLE — NOT if you have thyroid disease. Kills viruses on contact. 4–6x/day.

(4) REAL CHICKEN SOUP — genuine evidence. Homemade with garlic/onion/veg.

(5) SLEEP. Proven 2.94x infection risk with <7 hrs/night.

NO booze gargle — rhinovirus is non-enveloped, alcohol won't kill it. NO alcohol up your nose — damages your mucosa. NO deliberate sneezing — just spreads virus.

Watch my videos: Episode 1  |  Episode 2

📚 Key Published References

1. Ramalingam S et al. Hypertonic saline nasal irrigation and gargling for common cold. Scientific Reports. 2019.
2. Baxter AL et al. Rapid initiation of nasal saline irrigation to reduce severity in COVID+ outpatients. Ear Nose Throat J. 2022.
3. Guenezan J et al. Povidone iodine mouthwash, gargle, and nasal spray for COVID-19. JAMA Otolaryngology–Head & Neck Surgery. 2021.
4. Friedland P, Tucker S. Phase II trial of 0.5% povidone-iodine nasal spray. Laryngoscope. 2024.
5. Polasek TM, Friedland PL. Povidone-iodine nasal spray (Nasodine) Phase III RCT. Frontiers in Medicine. 2025.
6. Hemilä H et al. Zinc acetate lozenges and the common cold. Open Respiratory Medicine Journal. 2017.
7. Hemilä H. Shortcomings in the 2024 Cochrane review on zinc for the common cold. Frontiers in Medicine. 2024.
8. Saketkhoo K et al. Effects of drinking hot water, cold water, and chicken soup on nasal mucus velocity. Chest. 1978.
9. Rennard BO et al. Chicken soup inhibits neutrophil chemotaxis in vitro. Chest. 2000.
10. Huijghebaert S et al. Saline nasal irrigation and gargling in COVID-19. Frontiers in Public Health. 2023.
11. Gandhi S et al. Nasal irrigation for COVID-19: systematic review. Laryngoscope. 2025.
12. Cohen S et al. Sleep habits and susceptibility to the common cold. JAMA. 2009.
13. Eggers M et al. Virucidal efficacy of PVP-I against respiratory pathogens. Infectious Diseases and Therapy. 2018.
14. Heikkinen T et al. Visiting a sauna: does inhaling hot dry air reduce common cold symptoms? Medical Journal of Australia. 2010.

```

This post is for educational purposes only. Always consult your physician before starting any new treatment protocol.

Dr. Sandra Lora Cremers, MD, FACS  |  Visionary Eye Doctors, Rockville, MD  |  ▶ The Eye Show