Hello Doctor, My son is 4.4 years old. he had allergic rhinitis. Doctor suggested Nosal spray once at night. now he had cough n cold. no running nose. cough stuck inside. he have to give pressure and get cough out from nose.. at day is okay but early morning around 6/6.30 o'clock he get up with coughing non stop.. I gave syrup but it's not workable. at last he omit n get relaxed. it's happened from last 2/3 days. what to do? is there any way to stop this. as I give cough syrup at night. but early morning what to do?? please help me