We got lola a few months ago and on her chin which is white, she had little black dots and a bit of a sore bottom lip. The vet said it was cat acne. We were obviously feeding her from a saucer and the vet said previously she may have been feeding out of a plastic bowl which could have caused this. About a week later she was well on the mend and within a couple of weeks it all cleared up. Now she has a sore /swollen looking bottom lip. Does the acne present itself like this sometimes?? We have been wiping her lip with warm water on a cotton wool pad for the last two days (no improvement yet) can it be brought on by stress? Our other cat had kittens 4 days ago.