My son has asthma and allergies...I have a hepafilter in his room. It cost me $200-300, but it is well worth it. I think you can find them cheaper though, I bought the biggest one that I could afford at the time. It's unbelievable how much stuff it sucks up in the air. Also, I have special allergen filters in the AC and heater, they run about $12 each. I have a hepafilter in my vacumn. I vacumn and wash bedding as often as possible. I dust often. I wash the cats twice a week. The cats aren't allowed in Jaden's room. Also, I have these special allergy covers on his pillow and mattress.

Jaden takes Singular, Albuterol, Claritin, and Qvar.

Check out http://www.achooallergy.com/index.asp

Good luck!