My cat has been missing for a couple of days and thankfully turned up this evening. He seems absolutely fine and wolfed down the food I gave him, but has a burst abscess on the side of his face. It's left a bit of a hole and his fur around it was quite wet. DH has bathed it with some sterile water we had, and amazingly kitty doesn't seem to be in any discomfort. Is a trip to the vets tomorrow warranted? We could really do without the expense just now if it's not absolutely necessary, but of course if the cat needs a vet visit then that is what we will do! I know abscesses can be serious but I'm wondering whether that still applies when they've burst.