My girl is now 2 years old and she has developed a rash behind one of her ears under the fur. It doesnt smell and isnt crusty just red patches. The inside of he ears appear clean and dont seem to bother her but the outside back crease always serms to itch her. Ive been using polysporin but am not really sure what it could be. We have had our share of medical problems (flank alopecia, cherry eye) and would like to know opinions before i rush her to a vet. It seems to only be one ear. I have a hydrocortisone cream for myself at home, would that hurt to try?