Symptom · Dogs
Dog itching and scratching: what it means and when to call the vet
Constant scratching, licking or chewing usually means fleas, an allergy or a skin infection. It is rarely urgent, but itching that lasts more than a few days, or broken or smelly skin, is worth a vet visit.
By Maya HartCommon causes
- Fleas — even without seeing any
- Environmental allergies (pollen, dust mites)
- Food allergy
- Mites such as sarcoptic mange
- Bacterial or yeast skin infections
- Dry skin
What you can do at home
- Check for fleas and flea dirt with a flea comb
- Keep flea treatment up to date for every pet in the home
- Rinse paws after walks in high-pollen seasons
- Stop your dog licking open sores with a cone or a T-shirt
What the vet may do
- Skin scrapes and tape tests for mites and yeast
- Modern anti-itch medicines
- An elimination diet trial for suspected food allergy
- Treatment for secondary infections
Prevention
- Year-round flea prevention
- Regular grooming and bathing with a pet shampoo
The details
Itch is the most common reason dogs visit the vet. Allergies can’t be cured, but they can be controlled very well today — older treatments relied heavily on steroids, while newer medicines target the itch signal itself with fewer side effects. A food trial means feeding a single prescribed diet and nothing else for eight weeks, so plan for it.
Questions owners ask
Is dog itching and scratching an emergency?
Often it can be watched at home for a day, as long as none of the warning signs appear. Go now if you see: sudden swelling of the face, lips or eyes; hives with vomiting or breathing difficulty; a hot, wet, rapidly spreading sore.
What causes dog itching and scratching?
Fleas — even without seeing any; Environmental allergies (pollen, dust mites); Food allergy; Mites such as sarcoptic mange; Bacterial or yeast skin infections; Dry skin.
What can I do at home?
Check for fleas and flea dirt with a flea comb. Keep flea treatment up to date for every pet in the home. Rinse paws after walks in high-pollen seasons. Stop your dog licking open sores with a cone or a T-shirt.
Sources
Tailwise is for general information and is reviewed by veterinary professionals, but it is not a substitute for advice from your own vet, who knows your pet. How we check facts