My Daughter Has Had A Constant Cough Only During The

My daughter has had a constant cough only during the day. She does not cough at all while sleeping. She has been on antibiotics and prednisone for a week for a sinus infection which has cleared up but has left her with a dry cough every 40 seconds. She is on qnasal and as relive for allergies and qvar for asthma as well as albuterol. We've tried everything out there and been to allergist as well as otolaryngologist.