I’m so glad you mentioned something about diet! My 14-year-old Yorky was diagnosed with dry eye last year. She has been on cyclosporine 1%, two times daily since then. It seems to help but I noticed that she has little bumps growing on both the inner edges by her eyes where hair isn’t growing. Has anybody ever noticed that with their dogs? I recently switched her food to Wellness Core and miraculously her eyes cleared up! Then, as a treat, I was giving her some processed chicken (broasted chicken from Costco) and that night the gunk was back. I haven’t discussed the diet thing with my vet yet, but wonder if that could be the answer to a lot of pup’s problems out there? FYI: For people having trouble getting the gel and cream in the eyes, you can run the tube under warm water for about a minute, making it more liquefied. Goes in like a charm! (Having had had three cornea transplants feel I’m somewhat of an expert in the eye-gel-drop department!)
Regrettably there is no equivalent product which can be bought without prescription. Your cat is probably allergic to flea bites and so the occasional bite is causing a dramatic itching effect. This will actually settle down if you treat for fleas thoroughly, diligently and for long enough. Getting rid of all the fleas is actually not an easy task and it takes some while for all the flea eggs lost in nooks and crannies around the home to hatch out and develop. If you have treated the house extremely well then this will be dramatically reduced, but you will not get every one. Almost certainly the occasional flea will make it onto your cat and manage to bite before being killed off by the flea treatment you should be regularly using on your cat. Eventually you will succeed in getting the flea population to such a low level that they are not a problem for your cat and then the skin will settle down. Then you will never see any fleas, though the occasional one may be present at times. This takes some time and so you must continue to treat your cat for fleas, while making sure you treat the house very well. It is possible, but not as easy as most people expect, which is why this sort of skin problem occurs and tends to persist.