As a first step, you may also try Flea & Tick Shampoo. More often than not, this shampoo has helped pet owners with a mild case of skin mites without a trip to the vet. If the issue persists, then of course, a vet is needed, but since this shampoo can help keep them away after they are long gone, it's worth trying.
Cats have thinner, more sensitive skin than dogs, making them vulnerable to harsh shampoos with sulfates, artificial fragrances, and toxic preservatives. PawPurity’s Biogreen Enriched Shampoo, balanced at a 6.5 pH and made with 26 organic botanicals, gently cleanses while soothing irritation and restoring a healthy, shiny coat — naturally.