<s>[INST] Hello. For the last two weeks i've had a cough but it only occurs at night. Right before I fall asleep, I start coughing a lot, with the overwhelming feeling of something tickeling my throat, and my eyes start watering so much its as if im crying, and my nose starts to run, and I cough up very little amounts of mucus. During the day however, I feel completly fine, with no symptoms, but it will happen once throughout the day as well. Sitting up while sleeping helps a lot, and i've tried taking Mucinex to break up and phlegm, but doesn't seem to work. Almost positive its not an allergy. Please help! [/INST] HelloAs you described in query it is inflammation of the nasal lining membrane .Usually patient feels :Nasal itching, watery rhinorrhea, nasal obstruction , sneezing, post nasal discharge, cough , sometimes impaired smell Usually these symptoms are sometimes accompany infection ( as in your case in throat either due to allergy or infection).When such patient visit I prescribe montelukast +fexofenadine tablet once in the night .Mucinex only provide mild relief in mucus but in your case all these symptoms may be due to bronchoconstriction so if you feel uneasiness during breathing take montelukast +bambuterol instead above mentioned tab.Take azithromycin 500 mg once in day for 3 days .While monte+bambu , you have to take as whenever necessary.Good luck. </s>