Hi I'm new to this website and saw so much advice you guys give. My guinea pig Sylvester went to the vet bc he had a abscess under his chin they drained it and the vet hasn't gave me any antibiotics.. is that bad? The vet told me to just keep the wound clean and they wanted it open but did not told me to drain it or anything did not give me a syringe to drain it after what I have been reading about how to keep it open.. now it's all dried up and I can feel still a little lump under his chin. Please help, I might have to bring him back but I need advice .