My guinea pigs foot is swollen up and i don't know how to cure it! It's not red or anything, but it is huge! How should I help him? I can't let him die like this. He is a male and he is about 4 years old. He eats well and seems fine most of the time, but sometimes he looks like he is in pain. My vet doesn't know what to do. Can someone please help me and Furry?