We have switched her food to just tinned and she seemed to get better, we wash her in an anti itch shampoo and use anti itch spray but she seems to be getting worse lately. She has one lesion on her neck that she can’t stop scratching and we bathe it in warm water and put some cream on but it’s not healing. What could it be? As you can see in the photo she has 2 patches one is one that she has previously scratched and looked like the above one but we bathed and creamed it and it heeled soon but the other one won’t heal!!