Suppressants may control or suppress the cough reflex and work best for a dry, hacking cough that keeps you awake. Use cough suppressants wisely. Don't suppress a productive cough too much, unless it is keeping you from getting enough rest.

Do any cough suppressants work?

A review of studies found no proof that common over-the-counter drugs help with your cough. This includes suppressants like dextromethorphan, which block your cough reflex, and expectorants like guaifenesin, which are supposed to loosen up mucus in the airways.

What is the best thing to suppress a cough?

Use a humidifier to loosen mucus. Cough drops or lozenges soothe an irritated throat (do not use in young children). Saltwater gargle clears mucus from the throat. Use an extra pillow to elevate your head at night.