Uninformed
5,000+ Posts
Heat and ventilation will help as long as you remember not to blow air from the attic into the house. About a month ago, I put mothballs in my wife's closet and the closet still has an odor. Just give it time, each week it should get a little better. It will probably take 4 months though to be completely gone. And unfortunately, as the smell fades, its effectiveness against vermin will fade as well.