<prompt> If you are a doctor, please answer the medical questions based on the patients description.Hi my 1 year old daughter was told that she has baby asthma she kept coughing very often, doctor gave me fenistil drop to give her twice a day to open her airways they very narrow how long I should keep giving her these drops, obviously she is much better now, but I am worried if I stop the cough will come back  <response>: Hello, Thank you for asking at Chat Doctor. I went through your history and would like to make suggestions as follows:1. Feisty Chat Doctor. So basically they treat nose-throat upper airway related cough. They have not a great role in childhood asthma lower airways.2. If she is not having symptoms, and you have completed the duration of the course suggested by doctor, I would suggest you to discontinue the 