Two of my 4 children have asthma, and my oldest son had his first asthma attack at 3 weeks old. He had 3 courses of prednisone during his childhood (now 18) and outgrew the asthma by age 10 as most boys do if it is indeed childhood asthma. If you are uncomfortable with the prednisone, call your pediatrician, however it is a descending dose and is safe for children or the doc would not have given it, they don't give it out lightly, trust me, I have been through everything there is with breathing from having my 8 month old taken by paramedics from his crib to the ER to surgeries. Talk to your own doctor with anything he does that makes you uncomfortable, you need to be able to express your concerns to him or he won't be able to address your concerns directly. Going to get a second opinion isn't serving your child's best interest, if your pediatrician knows your son best.