Pooka has what I think is acne. She is a shorthaired kitty, and she has these yicky black spots on the side of her chin. I can clean them, and if when I do I "squeeze" the spots, black stuff comes out followed by pus. What is causing this??? I feed her high quality dry food, but she pretty much eats only Friskies wet food that I give the other cats as a treat(this cat is the queen of stubborness, if I dont give her wet she will literally starve herself)and eats out of a ceramic bowl. HELP!