My boy is scheduled for a jaw mass removal on Friday because even though the abscess is more or less flat, it keeps leaking, and i worry that once I finish the antibiotic he's on it'll just blow up. I figure this is because the sack just kept filling, but today while I was cleaning off the crust I think I may have accidentally pulled the sack out entirely as it was stuck to a hardened piece of the goo? I'll still keep his appointment for the vet to look, but does anyone know what they look like? it was white and soft, and the inside of the hole it left was bright red but not bleeding. The fact that the hole was red and didn't look to have a casing in it makes me think it's just healthy flesh. Feeling hopeful but wondering what you guys think.