Did this Doctor tell you that your son has ASTHMA OR COPD??????? Why does your son get sick often, and why does he wheeze...what did the doctor say about this?????? Is something more going on other then a COLD? You made no mention of this..therefore I wont talk about Alternative health care as your son might be suffering with a condition that makes him sensitive in getting sick often with colds and wheezing.
I haven't a clue what QVar is...but I went from "Adult Asthma" to now being "COPD" and use Albuterol along with other medications to keep my condition under control...I'm very senitive to catching colds and viruses and had to learn how to protect myself and in keeping my immune system up and healthy. When I do get a common cold, it usually plays havoc with the COPD and I always end up in the hospital for at least a week on antibiotics and Prednizone...and it's a long recovery at home due to a lot of side effects from these medications...
My point being "Asthma and COPD are on going conditions which makes people more senitive to catching colds and viruses.. Not to mention one of the side effects from most medications for Asthma and COPD cause infections...
If you aren't sure if something more isn't going on with your son...then question the doctor before you start playing around with medications and alternative health care..
Also, there is a bood test to check out ones immune system and what the body is missing in terms of vitamins and minerals...