My cat garfield has recently been suffering with sores on the front of his neck, lower back and by his tail. They look red and sore, however not weeping. We have been treating them with a cat friendly aleo and witchazel cream, which has been working slowly. Weve also started to apply sudocream. Any ideas what it could be? If it continues to not clear we will be taking him to the vets. Thankyou