Hi: I live in Hamilton, ON and have never had this problem before. For the past 3-4 months I have had flying black insects that seem to be coming from the drains. I first noticed them in my bathroom shower downstairs, then the big drain in the basement, upstairs sink drain & kitchen drain. They are all over the counters and floor & I spray with Raid Max and find all of the dead bodies later on. They bite like crazy and I have red welts and a rash all over my arms, hands, shoulders, etc. Probably on my back & in my hair as I am always itchy. Can't sleep and feel like I am going crazy. Poured bleach down every drain, but didn't help. My husband will not believe me, although I see him pick up these little black things on the floor. He says it is all in my head.HELP ME PLEASE!