if the cough is caused by post-nasal drainage from your sinusitis you can try taking a long acting antihistamine (claritin or zyrtec) to dry up some of the drainage. cough can also be triggered by simple irriation so a teaspoonful of honey or glycerine-based cough drops may help. drink plenty of fluids and humidify the air you breathe at night (humidifier or vaporizer). if all fails you can try an otc cough suppressant like delsym or ask your medical provider for a prescription cough medication primarily at night.
i have a sinus infection and on antibodics but i have this constant dry cough-what can i do about the coughing?