Breathing exercises. In through the nose, out through the mouth. Trying to do so evenly. I try to spell out words to help calm it down, puts the brain to focusing on something else besides the fact that I cannot catch my breath. This being said, I use advair daily, and I try to not push myself into an asthma attack (my lungs will let me know when I can go faster/longer) as I feel crummy the rest of the day if I have one.
The power to change, the courage to do, the will and drive to be exceptional lies within me, and by leaving my fears, my doubts, and my excuses behind, I embrace all that lies within me.