Lump On Side of Head

[bladebeam]

Hi people.

I went out for a stag night a couple of months ago maybe slightly less and got inadvertently punched in the side of the head just a few inches above the temple. Had a couple of nasty lumps for a few weeks, but I noticed the other day that there is still a slight lump there, I can tell this when I compare it to the other side of my head, it isnt noticeable or anything but I just thought it should have healed by now. Its not causing any discomfort or headaches or anything like that and was just wondering if I should be concerned at all as it doesnt seem to want to disappear !

Thanks