I have had asthma since I was four and am not allergic to most dogs very allergic
to cats. My doctor told me that can take
up to six months after an animal is removed
to get the allergens out of the house. Hopefully you can start opening some windows soon to air the place out. Also, Febreeze has an allergen removing product that I find useful to spray on carpet and furniture. Also, I got an air purifier that seems to get rid of a lot of allergens. I hope this helps you.