I receive your request for your son's healing and will join you in asking God for his merciful help.
The part of your prayer that asks for guidance for the medical team calls for something Scripture prizes highly. Wisdom is the principal thing, better than rubies. It cannot be bought or found by human cleverness alone; it begins with the fear of the Lord, and in Christ are hidden all the treasures of wisdom and knowledge. So we can ask God to give those caring for your son more than information. Knowledge without wisdom can be dangerous, but wisdom knows how to use knowledge rightly. We may ask boldly for that wisdom, because God is the one who gives it.
For your son's body and his anxiety, remember that strength does not finally come from within ourselves. Our own strength can run out, and when it does, we fall. But the strength that comes from the Lord will not let us down. Ask him to strengthen your son's lungs and calm his breathing, not because your son must find enough strength in himself, but because the Lord is able to supply what his body and spirit cannot.
I will keep praying with you: Father, remove every harmful effect from his medication, ease his breathing, and quiet his anxiety. Give the medical team wise discernment. Above all, let this trial teach us to seek the wisdom that begins with you and is found in Jesus Christ. In his name, Amen.