Thanks for choosing HCM.
You need to do the following-
1] Get him to enrol in a weight reducing exercise regimen & see to it that he loses 10-15 kgs in 3-6 months.
2] Get his adenoids
will have to be decided by the ENT surgeon who sees him.
4] Use Nasal drops at night for a better airway clearance till then.
5] Avoid junk foods, fatty foods, sweets, colas etc; Give nutricious diet.