Hello! I've never posted here before, but I've found a lot of answers to questions here in the past so I'm hoping someone can advise me. I've got a male New Zealand rabbit who is about 3-4 years old. Last month he had a nasty case of ear mites, which he's had before, and I treated it. I noticed he had a couple of little lumpy spots on his back, but I really didn't pay it too much mind. I kind of chalked it up to him getting older. This turned out to be a massive mistake, and I really should have kept a closer eye on it, cause it got really bad. He wasn't eating much, and wasn't moving around enough, so he got all poopy and dirty. We really can't afford to take him to a vet, so I did all the googling I could and I'm fairly certain the problem is flea mites. I bathed him and gave him an injection of Ivermectin. He's due for the follow-up shot tomorrow. Within a couple of days he started to look like he was feeling better. Started moving around more, and started eating like normal. I'm pretty sure we've got the mites under control. Tomorrow I'll give him his second shot and do another thorough clean of him and his cage. What I'm worried about is the TERRIBLE clumps of what I can only describe as "crust" covering his entire back under his fur. I didn't want to mess with it until he was feeling better so as not to stress him out, but today I went to take a close look at it and found that it's about a half-inch thick layer of fur and dry, brown crust. It looks kind of like if a long-haired dog rolled around in mud and then dried in the sun. I could peel it off of him like a hard-boiled egg. It wasn't even really attached to the skin in most places, but where it was going to pull too much I left it alone. The skin underneath looks pink and healthy, so I'm hoping that means he's really done with the mites and getting better. So my question is, what can I do about the rest of the crust on him? Is there anything I should use to help loosen it up so it won't pull his skin to remove it? Can I put anything on the uncovered naked skin in case it's feeling raw or irritated? And will the hair on his back grow back? He'll look kind of ridiculous with a bald back, Thanks!!