ok, maybe it's just me, but this sounds familiar, especially the "black hair" looking things sticking out of the problem areas. Read this post and tell us if it sounds like your same issue:
skin parasites help please no one will listen......
Idk, it just rung a bell with me since I followed the thread I posted above and kjc on here was really concerned that this person had a furnace problem and was concerned about carbon monoxide problems. It would only be that if you have oil heating in your home though.