I have what is called severe chronic asthma. It stinks- its hard on everyone.

As a child I was not in daycare as I required lots of meds everyday. Now asthma management has gotten a lot better, and it tends to get easier to control as kids grow- small air passages grow which means it takes more swelling and mucous to close off.

That said- attacks do happen. Do his parents know his triggers? Can they provide them in list format?

Will you have access to his pulmonologist if the need arises?
Will you have a rescue inhaler?
Will you have a copy of his treatment plan?

What are his current meds?
His current peak flow (and what are his zones?)

I would ask for a letter from his doctor saying that he is in stable condition and his asthma is controlled as well as answers to the previous.