Here Is What HelpsAnd What Doesn'tWhen Sick with a Cold or Flu

"Vitamin C might shorten a cold by about half a day. That's it. And that's if you take it consistently before getting sick, not just after you're already sneezing into your sleeve. Zinc lozenges? There's some evidence they can help, but only if you take them within 24 hours of your first symptoms. Wait too long? It's a no-go. Also, nausea, metallic taste and stomach cramps can be side effects."

"So here's what actually helps when you're sick with a viral illness like the cold or flu. Neti pots can be helpful for congestion if you use them safely. That means using sterile or distilled water. Tap water can harbor dangerous organisms, especially for your sinuses. Drinking fluids helps thin your mucus, which can also ease congestion. And staying hydrated just helps your body work better."

Vitamin C provides only a modest benefit, shortening a cold by about half a day when taken consistently before infection. Zinc lozenges can reduce symptom duration if started within 24 hours of symptom onset but may cause nausea, metallic taste and stomach cramps. Antibiotics do not treat viral colds or influenza and unnecessary use contributes to antibiotic resistance. Nasal irrigation with a Neti pot can relieve congestion if sterile or distilled water is used because tap water can contain dangerous organisms. Drinking fluids thins mucus and aids bodily function. Acetaminophen or ibuprofen relieve fever, headache and body aches.

Read at www.scientificamerican.com