The Risks of Drinking Alcohol When Sick
When your body is fighting off a cold, it needs to direct all its resources toward healing. Introducing alcohol can actively work against this process. The common belief that alcohol can kill germs is a myth; instead, it can prolong your recovery and worsen symptoms. Understanding the specific risks is crucial before deciding to have that hot toddy.
Alcohol and Immune System Suppression
One of the most significant reasons to avoid alcohol while sick is its immunosuppressive effect. Heavy drinking, even a single binge-drinking episode, can reduce the number and function of white blood cells (lymphocytes), which are critical for fighting off infections. By hindering this vital function, alcohol gives the cold virus a longer window to cause havoc in your body, potentially delaying your recovery time. Chronic heavy drinking further damages immune function, making a person more susceptible to infections over the long term.
The Dehydration Effect
Staying hydrated is one of the most important things you can do when you have a cold. However, alcohol is a diuretic, meaning it causes your body to expel water through urination. This leads to dehydration, which can exacerbate many cold symptoms, including:
- Headaches
- Body aches
- Congestion
- Fatigue Instead of helping you feel better, drinking alcohol will make you feel worse by removing the very fluids your body needs to thin mucus and flush out the infection.
Dangerous Interactions with Cold Medications
Mixing alcohol with cold and flu medications can lead to dangerous side effects and liver damage. Many over-the-counter cold medicines contain active ingredients that react poorly with alcohol.
- Acetaminophen (e.g., Tylenol): Both alcohol and acetaminophen are metabolized by the liver. Combining them, especially in high doses, can put a severe strain on the liver and lead to damage or even death.
- Antihistamines (e.g., Benadryl, found in NyQuil): These medications can cause drowsiness. Alcohol is a central nervous system depressant, so combining them intensifies the sedative effects, causing severe dizziness, drowsiness, and impaired coordination.
- Cough Suppressants (e.g., Dextromethorphan): Found in many cough syrups, DXM can also cause drowsiness. The combination with alcohol increases this risk and can lead to impaired judgment and disorientation.
The Truth About the Hot Toddy
The hot toddy is a classic folk remedy for a cold, typically made with whiskey, honey, lemon, and hot water. While many swear by it, the perceived benefits come primarily from the non-alcoholic ingredients and the preparation method, not the whiskey itself.
- The Warmth and Steam: Inhaling the steam from a hot beverage helps to loosen mucus and clear nasal passages. The warmth is also soothing for a sore throat.
- Honey: Honey is a natural cough suppressant and has anti-inflammatory properties that can soothe an irritated throat.
- Lemon: Lemon contains vitamin C, an antioxidant that can support the immune system, and its acidity can help break down mucus.
While a warm, non-alcoholic version can be comforting, adding alcohol is counterproductive and introduces the risks of dehydration, weakened immunity, and medication interactions. There is no evidence that the alcohol itself helps treat or cure a cold.
Comparison of Cold Remedies
| Remedy | Primary Benefit | Risk with a Cold | Verdict | 
|---|---|---|---|
| Hot Toddy (with alcohol) | Soothes throat (from honey and warmth), helps with relaxation | High Risk: Dehydration, immune suppression, drug interactions | Not Recommended | 
| Hot Lemon Water with Honey | Soothes throat, aids hydration, provides vitamin C | Low Risk | Recommended | 
| Herbal Tea | Hydrating, soothing, certain teas (e.g., chamomile, ginger) can calm symptoms | Low Risk | Recommended | 
| Chicken Soup | Nutrient-rich, hydrating, anti-inflammatory effects | Very Low Risk | Highly Recommended | 
| Over-the-Counter Medicine | Symptom relief (if used correctly) | Risk depends on type, never mix with alcohol | Use as Directed | 
Safer and Effective Alternatives for Cold Relief
Instead of turning to alcohol, consider these immune-supporting and hydrating options:
- Herbal Teas: Chamomile, peppermint, and ginger teas are soothing and hydrating. Add a spoonful of honey for a natural cough suppressant.
- Warm Lemon Water: A simple combination of hot water, fresh lemon juice, and honey is a proven method for soothing sore throats and providing hydration.
- Chicken Soup or Broth: Warm broth is hydrating and easy to digest, and chicken soup has a modest anti-inflammatory effect that can help reduce cold symptoms.
- Vitamin C: Incorporate foods and drinks rich in vitamin C, such as orange juice, to support your immune system.
- Stay Hydrated: The most important thing is to consistently drink water to stay hydrated and help your body flush out the infection.
Conclusion
While the idea of using alcohol to “kill germs” or soothe a cold is a long-standing myth, modern medical consensus is clear: it is not recommended. Drinking alcohol when you are sick can suppress your immune system, worsen dehydration, and cause dangerous interactions with cold medications. The safest and most effective strategy for fighting a cold is to focus on rest, staying hydrated with non-alcoholic fluids, and using proven remedies like hot lemon water and honey. If you are experiencing severe symptoms, consult with a healthcare provider and always read medication labels carefully. To learn more about alcohol's effects on the body, refer to the National Institute on Alcohol Abuse and Alcoholism (NIAAA).