Although asthma can be triggered by food protein allergens coming from gastric reflux, it would be better to find a doctor first to have yourself treated with gastric reflux. You must treat or avoid the cause first so that it would not frequently reoccur. In other words, treating asthma without treating the cause would keep asthma from coming back.
Inhaler therapy or controllers are usually given along with bronchodilator therapy. So, better go back to your doctor and have yourself checked.