bald spot on nose

Hello, unfortunately one of my guinea pigs has this problem with her nose, she has this bald spot on her nose with two big scabs she probably must've scratched herself with her sharp nails making herself bleed and causing the scabs, it's probably a rash or something more, unfortunately my mother...

a few weeks ago my guinea pig had a little crusty part on his nose so i wiped it off and now i noticed he has a tiny little spot without hair on his nose and i’m worried. i don’t know what the crusty thing was that i wiped off but i do know that i did it really gently so it wouldn’t get...