My 6 year old Alpine (Butterfly) has bumps on the outside of her teats. Right teat has quite a few bumps on the right side. Left teat has one bump towards the back. Mosquitos are gone now in Alaska, so it is not them. Have been washing her with clean warm water/paper towels, and then after milking we vaseline her teats. At one point about a month after getting the goats, the Vaseline had gotten a little milk splattered in it and it ended up growing a little icky. But we totally cleaned that out quite a while ago, so I don't know if it could be that. Could it be external parasites? Or? Thank you for your time.