In high doses, it can have serious and lasting effects. DXM, short for dextromethorphan, is an over-the-counter (OTC) cough suppressant that’s found in some cough syrups and cold medications.

Humidifiers add moisture to the air. They can help people with dry skin, allergies, and respiratory problems. They may also help prevent influenza and reduce snoring, among other benefits. Dry air ...

There is no cure for a cold or the flu, but a bowl of chicken soup or a cup of hot ginger tea with honey can help manage the symptoms. Some home remedies, such as vitamin C, may slightly reduce ...