I was diagnosed with exercise-enduced asthma when I was a

Patient: I was diagnosed with exercise-enduced asthma when I was a child. 2 years ago, when I was 19, I went to the doctor because I was out of breath a lot and he said that my asthma had progressed to mild asthma, but he still only gave me a rescue inhaler. For a while now, I am always having to clear my throat because there is always mucus/flem. Also I get out of breath a lot including going up or down stairs, walking/moving around a lot, bending over a lot and picking things up, and just walking across campus to class. It is more often at night when I get short of breath a lot, but it happens frequently in the daytime too. I was wondering if this is something I need to be concerned about and what other options I might have besides just a rescue inhaler because I cannot take that every time I am short of breath. Thanks for your time!

Doctor: