Well, about a month ago we did our worming and CD&T vaccinations for our 3 goats. I held the goats while my husband gave the shots and the wormer. Now we have one of our wethers with a lump coming up on his side. It is near the shoulder high up on the right side. The lump is loosing hair. I have a feeling that this is where the shot was given, but hubby can't recall exactly where he administered the shot....soooo any suggestions on what it is or what to do about it? Should we be worried or will it go away? Thanks in advance.