How can you stop coughing during the night?

Nocturnal cough: Depends on the cause. Many patients with nighttime cough have some reflux, but could be suffering with allergies. You could try an antihistamine, a reflux medicine, or a cough suppressant, all are available over the counter. With the limited information provided, it is not really possible to determine the cause of your cough to give you more specific guidance.

Med eval: Your doctor can evaluate for reasons you cough at night (like post nasal drip). Sometimes tessalon perlles or codiene can suppress cough until underlying reason is corrected.