It could still be demodicosis. It has quite a few presentations. Pig's sister is always scratching and licking and then running away like her rear is on fire. So I decided what's the harm, I may as well try the lime-sulpher on her, too. And amazingly, it worked! Both are both pure white, and Sissy's fur was becoming stained from bloody skin where she licked and chewed non-stop, especially under her front legs. She also has that classic "chin acne". She never tore herself up as badly as Pig, but she was still obviously in distress. We tried other remedies but nothing had ANY effect. Until I tried the sulpher dip. It doesn't work overnight. It's a several week treatment. But it was SO worth it! My babies can finally relax - after so long!AllMomsKitties – Wow! I love hearing stories like this that have a happy ending. Great news that you found what out what was causing Pig’s condition. My case is different as my cat Binky is not scratching or biting, she is constantly twitching and licking excessively where her skin is twitching. I too thought it may be fleas and tried the flea remedy with no success. Funny, the vets don’t seem to know what exactly causes this type of condition but they say it’s a “behavioural or environmental” condition. Did Pig ever have any twitching or muscle spasms? I may bring this up to my vet when I talk to him next week and see if he’s heard of it. I may also get them to take a skin scrapping if I can get Binky to the vet. She does not like to be handled at all and they had to fully sedate her when they did a blood and urine test when she first developed these symptoms but there was no other tests performed. They did ask me questions about whether I had changed her food recently but that was about it. After seeing how aggressive she was when she first came in and after doing a physical on her and seeing nothing concerning in her blood work, they chalked it up to being a behavioural disorder and right away prescribed the Fluoxetine (Prozac). This was back in October 2013. I am going to do some more research on this Demodicosis. Binky goes out on the balcony all summer and even in the winter (she loves to play with the snow) and there are always lots of bugs on the balcony and ones that get into our apartment which she has eaten many times. Hmmm…I’m wondering now. Thank you so much for giving me another condition to research and ask the vet about. I was hesitating about whether to get allergy test done on her but I hear it’s a really big ordeal for a cat and very expensive. I’m so glad that people respond to these posts and give their story – it can literally save another pet owner so much grief and stress not to mention make their pets life so much better by sharing information.