I travel for a living and stay in hotels several nights a week. I discovered I had head lice quite some time ago. I live alone and keep a very clean home. No one in my family has ever had lice. Now I believe I have some kind of microscopic bugs in my ears. They tickle and itch. I'm finding bloodie spots on the edges of my ears also as though something is feeding on my blood. On occasion when I shower I feel tiny hard things that seem stuck to me. It takes a firm scratch to remove them but they are so small I cant see what they are. What is it and how do I get rid of them once and for all ?