Hoshi’s unique short muzzle hides some deep lower lip folds. These are difficult to trim and keep clean. He’s prone for fungal infections because of it. I took him to the vet a few days ago and she said his condition wasn’t that serious. She said lip folds on some cocker spaniels are more problematic–recommending corrective surgery for some. Hoshi was sent home with Malaseb shampoo and Mupirocin ointment.
I’ve noticed the infection gets worse in between trims. Long hairs hide in those folds getting matted and dirty. I’ve decided to trim his lips more frequently (possibly every week). I’m also going to clean his lips periodically with baby wipes.