My daughter is 3 years old and since she has had a viral infection back in October, haas been struggling with coughingg at night. It does get better, but just lately it is getting lots worse. Last night she was coughing about 30 mins, we tried cough mixture and her inhaler, which the Dr gave last time we went about the cough, to see if it would help. Unfortunately nothing helped. She struggles to breathe through her nose, but its defintiely more pronounced at the moment. She has never had any ear infections or tonsilitus or anything and is reasonably well. Would this be an adenoid problem or something else?