Around early June, I took my pigs in for a check up before I went on vacation. My vet said that Guinness has some dry skin (it was definitely not parasites) and to put some Vitamin E in his pellet food and to try rubbing some flax seed oil on the itchiest parts of his skin every 3 weeks. Well I went to put some oil on his skin a couple minutes ago and found that he had opened one of his scabs (he has 3 tiny ones on his back from scratching). I reluctantly used some salt water to clean it out, but I don't want that to dry out his skin even more. Will a little vasaline help? Is that even safe for guinea pigs?