One of my wethers has a spot right where I gave him his CD/T March 1st. Its a hard spot which looks to have had a hole where it blew out but is still there and looks dried up. I give it to them behind their front legs. Im wondering if I should leave it alone, put something on it or try to pick it out? Hes acting normal and it doesnt seem to bother him. None of the other goats has it.