I have this as well. In a nutshell there isn't any bug biting you, I guarantee you. It's much bigger than that. I can't post the link for some reason but search up on YouTube: HOW TO NATURALLY GET RID OF YEAST AND BAD BACTERIA. It's a internal problem, that has a lot to do with your digestive & immune system. I recommend getting an allergy test and drink a lot of water. I'm in the process of curing myself so I can't tell you what exactly works but it all makes sense.