ONE THREAD per pig please!
We really want your pig's history all in one place to help you. Pleasedon't start a new thread for a new issue. Just reply to your old one. We can edit the title for you if needed.
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It may be a fungus, or just accumulated gunk. I'd start out by soaking him in warm water, then applying cold pressed coconut oil to see if the stuff will soften up and come off. It may take more than one soaking/oiling to see if it's making any difference.