A practical guide to tell mild from serious — but when in doubt, always ask your vet.
Last reviewed: 2026-09-05 · Reference ranges: ASPCA, Pet Poison Helpline & Merck Veterinary Manual
Self-care and monitoring — see a vet if it does not settle — For most cases, follow the home-care steps below and call your vet the same day if warning signs appear.
Cats groom a lot, but over-grooming, bald patches, scabs or scratching around the head and neck signal itching that needs attention.
Contact your vet if any of these apply:
Treat fleas with a vet-approved product. Do not use dog flea products on cats. If skin problems persist, book a vet visit.
Your vet may do a skin scrape, check for fleas or fungus, and may trial a food or environmental allergy plan.
Only under your vet’s direction. Many human allergy medicines are unsafe for pets or contain ingredients that are toxic. Ask before dosing.
Fleas are easy to miss, and one bite can trigger weeks of itching in allergic pets. Other causes include food allergies, mites, fungal infections or skin infections — your vet can help identify it.
Same symptom in Dog: see Dog Skin Itching — causes and home care can differ by species.
This page is educational triage information, not a diagnosis. Pets vary — when in doubt, ask your vet. In an emergency, contact your local emergency clinic or pet poison hotline directly.