I have a full bug jacket, with bite-em-no-see-um mesh, in my fishing gear, two in my truck, two in my 4W ATV, two at the camp, and two in the hall closet. And, I gave a few away. They were on sale at the Co-op for $5 each a couple of winters ago. Unfortunately, it's difficult to sleep in one.

I was thinking about a large gauze bandage or two to cover the wound against dust and dirt, so that should help against the flies.