What is important is you must find out what is causing this
allergy. Common allergens are pollen,
mold, dust, pet dander, cosmetics or drugs. You must get an
allergy test done, either a skin test or by RAST, to know what you are allergic to. Mold can be present in the air conditioning at home.
Putting the mattresses out in sun, vacuum cleaning, finding out if there are cats or dogs in immediate neighborhood etc should be carried out.