I had pneumonia when I was 14 (weakened immune system after growing 6 inches in 8 months...) and the doctor prescribed breathing exercises which were very helpf

I had pneumonia when I was 14 (weakened immune system after growing 6 inches in 8 months...) and the doctor prescribed breathing exercises which were very helpful. There was of course a ton of ABX as well as inhaled steroids, but after all of that, the breathing exercises were what helped to restore me to normal. (The Prednisone actually did a lot of harm, don't go off it without a taper!)