Written By: Karim Kaifi – Pet Owner &Pet Care Writer
Reviewed by: Dr. Hussain Ali, DVM
Updated on 10 jan 2026
If your dog is scratching and biting all the time, it means something is bothering their skin. The most common reasons are fleas, allergies, dry skin, infection, or stress. A little scratching is normal, but constant scratching is not. The good news is that most dogs feel better once you find the cause and treat it early.
Quick Summary
- Dogs scratch most often because of fleas, allergies, or dry skin
- Even one flea bite can cause heavy itching
- Food and environmental allergies are very common
- Mild itching can be soothed at home
- If scratching lasts more than a week, see a vet
Table of Contents
Why Does My Dog Scratch and Bite Himself So Much?
According to the American Kennel Club (AKC), dogs scratch because their skin feels itchy, sore, or uncomfortable, commonly this itching is called pruritus, but all you need to know is this: your dog is trying to get relief.
The most common reasons are:
- Fleas or tiny skin parasites
- Food or seasonal allergies
- Dry or irritated skin
Your dog is not being naughty or dramatic. Scratching is their way of saying, “Something doesn’t feel right.”
READ MORE: Why Does My Dog Dig on My Bed? Real Reasons & How to Stop It
How Much Scratching Is Normal for a Dog?
According to AVMA, a little scratching now and then is normal. Dogs do it just like we do.
Scratching becomes a problem when:
- It happens many times a day
- Your dog keeps scratching the same spot
- You see red skin, hair loss, or sores
If scratching looks nonstop or painful, it’s time to take action.
How to Stop Your Dog from Scratching Constantly (Step by Step)
1. Check for Fleas First
Fleas are the most common cause of itching in dogs. Some dogs are very sensitive, so even one flea bite can cause days of scratching.
What to do:
- Check around the neck, ears, belly, and tail
- Look for black dots (flea dirt)
- Use flea prevention all year, not just summer
Even dogs that stay indoors can get fleas.PetMD
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2. Change to a Simple, Allergy-Friendly Diet
Many dogs scratch because of food allergies, even if they’ve eaten the same food for years.
Common problem foods:
- Chicken
- Beef
- Dairy
- Wheat
Better food choices:
- Salmon
- Duck
- Venison
- Limited-ingredient dog food
Feed the new food for 6 to 8 weeks to see results.
3. Calm the Skin with Gentle Home Remedies
If your dog’s itching is mild, natural care can help.
Safe options include:
- Oatmeal baths to calm itchy skin
- Coconut oil to reduce dryness
- Pet-safe aloe vera for sore spots
These help comfort the skin, but they won’t fix serious problems.
4. Help Dry Skin Heal
Dry skin often causes more scratching, especially in winter.
Simple tips:
- Use shampoo made only for dogs
- Look for oatmeal or aloe
- Don’t bathe too often
Never use human shampoo. It dries out your dog’s skin.
5. Keep Allergens Out of Your Home
Dust, pollen, and strong smells can make itching worse.
Easy steps that help:
- Vacuum often
- Wash dog bedding weekly
- Avoid strong sprays and cleaners
A cleaner space means less skin irritation.
6. Use Dog-Safe Anti-Itch Products
Some sprays and shampoos can give quick relief.
Helpful products:
- Dog-safe anti-itch sprays
- Medicated shampoos
- Cooling sprays for hot spots
Never use human creams unless your vet says it’s safe.
7. Stop Damage with Protection
If your dog scratches until the skin breaks, protection helps healing.
Options include:
- Soft recovery cones
- Dog shirts or sweaters
- Keeping nails trimmed
This prevents wounds while the skin heals.
8. Visit the Vet if Scratching Won’t Stop
See your vet if:
- Scratching lasts more than 7–10 days
- Skin becomes raw or infected
- Your dog seems uncomfortable or restless
Your vet may give medicine, special shampoo, or allergy treatment.
Why Is My Dog Itchier at Night?
Many dogs scratch more at night because:
- Warm air dries the skin
- Bedding holds dust and allergens
- There are fewer distractions
If night scratching affects sleep, a vet visit is a good idea.
Why Does My Dog Scratch His Ears and Then Lick His Paws?
This pattern often points to allergies or ear problems.
Watch for:
- Red or smelly ears
- Head shaking
- Paw chewing
These signs mean it’s time to check with your vet.
When Should I Worry and Call the Vet?
Call your vet if:
- Scratching is constant
- You see sores, swelling, or hair loss
- Your dog seems in pain
Early care prevents bigger problems.
How Do Vets Treat Constant Itching?
Treatment depends on the cause.
Common vet treatments include:
- Allergy medicine
- Special shampoos
- Antibiotics for infection
- Prescription diets
Vets treat both the itching and the cause behind it.
How to Prevent Itching in the Future
Good daily care can prevent many skin problems.
Helpful habits:
- Brush your dog often
- Feed high-quality food
- Use flea prevention all year
- Keep bedding clean and dry
Catching problems early saves your dog a lot of discomfort.
FAQs
Why is my dog scratching but has no fleas?
Dry skin, allergies, or infection can cause itching even without fleas.
Can my dog be allergic to food?
Yes. Food allergies often cause itching, ear problems, and paw licking.
Is constant scratching serious?
Yes. It can lead to sores and infections if ignored.
Can I give my dog Benadryl?
Sometimes, but only if your vet approves the dose.
When should I take my dog to the vet?
If scratching lasts over a week or causes sores, see a vet.
Disclaimer: This article is for informational purposes only and does not replace professional veterinary advice. Always consult your veterinarian for diagnosis and treatment.
Karim Kaifi is an experienced pet owner and writer. He shares practical, research-backed advice based on over 10 years of caring for cats and dogs.
