We've been dealing with scabbies for the past 4-5 years now

We had 1 good year where he hardly had any and he was finally able to grow back a thick healthy coat! But they are back and I feel like we are getting no where. The vet had given us some bright orange pills a few times and they go away completely but then they slowly start to come back. The medicated shampoo helps keep them away too. But I really wish I can find out whats causing it.
They start out as lumps all over that turn in to scabs and then fall out (or picked

) leaving bald spots.
I've also come home to his underside completely raw from him gnawing on his skin. Some days his skin will turn hot pink/red and all of his fur will be puffed and standing straight up. He will also be super sensitive to the touch. This doesn't happen often, but ever now and then.
Joy to allergies!
Misskiwi67 wrote:If its raised, I would biopsy - could be nothing, could be melanoma, mast cell, or hemagiosarcoma (usually benign in skin, but bleeds and is obnoxious, best removed).
If its flat, then I'd just monitor closely.
Thanks! Hopefully it is nothing! Ill update later this week with what the vet says!