SINS... that's okay in warm weather. When cold weather comes, do yourself a favour and shoo them outside, even though such might be a death sentence in the end. I do becasue I developed the same reaction you may have. Cellulitis can become necrotizing fasciitis in a matter of hours. I was shocked when my doc explained this to me. So, I shoo them out this time of year. Or step on them if need be. The little bastards don't kick in a dime for my Blue Cross coverage so fuck em.