Hun I just found your post here..since your rabbit is outside his red bunb could be a flea, mites, or maybe a tick bite?? I'm not a vet but have 3 bunnies myself. I think I have seen here on the website that you can put flea medication ( for cats) on your rabbits but you would need to get the right dosage from a vet based on weight. I want to find the ratio so I can put flea meds on my 3 buns. Also rabbits are naturally clean animals and bath themselves alot by licking the bottom of there paws and rubbing there face..or licking there backs and belly. If you want take a video of your rabbit even a 5 minute video..upload it to YouTube then post the link to your video below and maybe we can help you better. This is a great community and Jbun and Blue eyes helped me alot when my bunny had a fractured knee. She recovered without surgery..a little deformed but happy as she always had been.