So I've just noticed this cut on my guinea pigs back, he lives in his own cage so I know he hasn't been fighting (dont worry hes next to my others but he just wont get along with them). His nails are quite sharp so I dont know if he could have scratched himself but the cut is quite wide so I'm thinking it is something else like mites or lice but I dont know really how to treat them! I have noticed my other 3 have been itchy but I dont know if it's just because I'm being paranoid and paying way more attention, I havent seen any little scabs or anything on them so I'm not sure. I dont really want to take them to the vets as it's expensive and I know theyll do a skin scraping which I know is not nice for the piggies. Any advice on good creams or something I could treat them all for if it is mites would be great! For now I have just put sudacrem on the cut to help it heal quicker.