Yes, i have a Burmese girl who has some sort of allergy, she gets sores around her neck. It's probably a specific food ingredient but I haven't yet been able to identify it (ca't afford allergy testing!) and with quite a few other cats in the house, I could never feed her a special diet on her own. So at the moment we're just living with it - it doesn't seem to bother her although it looks nasty sometimes.

__________________