Red pimple?

[z28sseater]

Hi, i have recently noticed a red pimple developing on my blue hippo tang's lip. Ive looked around for any fish disease that sounds like it, but none sounds like it. It basically looks like a small red pimple, its grown a little bit in the last 2 days but it is still very small. Im hoping my clown trigger just bit him and he was bleeding. Would that make any sense? I have a 18w uv sterilizer in the tank, and none of tbe other fish have anything on them. My water quality is excellent. Any suggestions?:help:

[Amphiprion]

Just sounds like a little site of inflammation from something. I'd leave it be for a bit and see what happens. If you notice it growing more or hindering the fish's feeding activities, it may be a good idea to quarantine and look into some antibiotics.