Yes, I'm RH negative too. Some say they mate during the full moon. I saw a bug here like a flea that jumped and I caught it. It wasn't a flea but it was too quick and got away. I think we get a worm and that changes our body chemistry and it attracts other stuff like these mites. My immunity has been down for awhile from multiple surgeries. I took the baths which helped then discovered the filarial worms so then i took herbals first and passed like 300 worms that I think were small hookworms. the herbs made them scatter all over my body. It was horrible. They were crawling under my scalp in my legs and feet. Then the pin worms came marching out. I increased the herbs and took mebendazole for 3 days but thats all the doctor would give me. After this I continued with a Wormwood combination and cloves and the meds that scabdraggr suggests. I have cleared all the hookworms, the filarial worms are almost all gone. I'm still battling the pin worms but I'm starting to see progress with them from taking papaya seed smoothies. They cause the itching nose, eyebrows and ears and the white things in your eyes. Use Colloidal Silver and rub it into your eye lids. Your will see a bunch come out from the folds of your skin there. Nettie pot with eucyliptis drops for the nose. The ears dump peroxide in them and let it bubble when they itch. They are hard to get rid of. I think the herbs are important because they make an uncomfortable environment inside us for these things. But they don't seem to be able to kill them off outside the intestines. The meds do that.