 [ Symptoms ] my 3 yr old has been coughing over 3 months been to dr 3 times antobiotics cough syrup no sleep what should i do  she will be 3 end of december weighs about 30 pounds coughs 90 of the day irritating for her and even those around her cant go to sleep and when she finally does she wakes up several times during the night been on 2 antibiotics for sinus infection in past 3 4 months been through 2 prescription cough syrups as well as 4 otc cough medicines two of which are all natural honey also placed on singulair which didnt do anything [ Disease ] if this has been going on for over 3 months then it sounds like something more serious than a cold or sinus infection could possibly be asthma bronchitis or something else i would go see an otolaryngologist and ask your doctor is office to refer you to one they would recommend