My Molly gets them from time to time. Mostly when she has her pups. They are like pimples and they go away. Hers is from cleaning the pups all the time. All that licking clogs her hair folicles and they get red and bumpy. I have read that plastic bowls will cause this sometimes also. The ones I've seen are like pimples on people and they are harmless. I think if the vet says it's okay, then I wouldn't worry. Keep an eye on them and make sure they don't become large and infected. If what you are doing helps them heal, then keep doing it!