Why is my cat still biting and scabbing after fleas are gone?

Question

Spud 1.5 year old male cat. Found on street at 3 weeks. He had terrible fleas last summer with scabs all along spine. Fleas are now gone but scabs have worsened from as a result of him constantly biting skin. Scabs have now spread to his belly and sides. Pet's info: Cat | Mixed Breed | Male | neutered | 1 year and 6 months old | 1lb

Dr. Elizabeth · Accepted Answer

Poor Spud! Continued, chronic skin issues generally indicate one of four things in cats. It indicates flea allergy, environmental allergy, food allergy or thyroid disease. You can rule out continued flea problems by using a good product such as revolution or a Cheristan. For 2-3 months, if the skin issues clear up, it was likely a few pesky fleas. Food allergies are diagnosed by feeding a special prescription hydrolyzed protein diet. Thyroid conditions are diagnosed with a blood test. Environmental allergies are the most difficult to diagnose and may require a blood test or trial of medication. Secondary infections are very common with all these conditions. It sounds like Spud is uncomfortable with the constant licking and chewing. I recommend to have him see his veterinarian for medications that will provide some relief. You can also talk to the doctor about which of the four conditions to start ruling out first. I hope this is helpful and please feel free to post any additional questions.

Why is my cat still biting and scabbing after fleas are gone?

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