K.D.
My oldest has asthma and allergies. I took her to an allergist and had her tested to see what her triggers were. The process is pretty painless. And knowing what her triggers are will help with controlling the asthma. Once you discover what her allergies are you can discuss with the allergist about possible allergy shots. They are done once or twice a week.
Depending on the severity of her asthma once you get control of it the albuterol treatments won't be needed as often.
Also you can change the type of filters you use in the house. There are some that collect more dust than others. Think hepa is one of them.