My situation starts out somewhat similar to that of Shellgg - 11 year old male cat with case of what appears to be chin acne, and similar reaction to topical meds. Unfortunately the vet does not recommend antibiotics because my kitty is already on Terbinafine and itraconazole to manage a gastrointestinal fungus. After eight vets, Duoxo seborrhea spot-on was recommended instead - but none of the vets seems to have much if any experience with it, and told me to be prepared for some "trial and error." I'd appreciate any expert advice or reports of experience that laypeople on this community may have had.View Thread