How to Fix a Dog’s Dry and Flaky Coat

By Dr Duncan Houston

White flakes through your dog’s fur can make you reach straight for a shampoo or skin supplement. Before you do, check the skin underneath: is it comfortable and otherwise normal, or red, itchy, greasy or sore?

The best treatment depends on what is causing the flaking. Removing dandruff helps the coat look cleaner, but a lasting improvement often means addressing the skin problem producing it.

Quick answer

To improve a dog’s dry, flaky coat, use gentle grooming, an appropriate dog shampoo, a complete and balanced diet, and effective parasite prevention. Persistent flakes, itching, hair loss or odour need a veterinary examination because allergies, parasites and infections can look like simple dryness. A few flakes in an otherwise comfortable dog are usually not an emergency.

Why is your dog’s coat dry and flaky?

Dandruff is a build-up of shed skin cells. An occasional flake can be normal, but substantial dandruff can indicate a grooming or skin problem.

Possible causes include:

• Grooming or bathing problems: harsh products, rough brushing or shampoo left against the skin.

• Environmental dryness: cold weather and dry indoor heating can contribute to mild dryness.

• Parasites: fleas and certain mites can cause scaling and irritation.

• Allergies or infections: these often cause itching, redness, unpleasant smells or hair loss.

• Nutrition or underlying illness: an unbalanced diet, hormonal disease or a skin renewal disorder may affect the coat.

Flaky skin can also be oily. That distinction matters because a strong degreasing shampoo may make genuinely dry skin more uncomfortable.

How worried should you be?

What you notice	What to do
A few loose flakes, comfortable skin and normal behaviour	Start gentle care and check the skin daily. Arrange a routine appointment if flaking persists or returns.
Noticeable dandruff with itching, redness, odour, crusts or hair loss	Book a veterinary appointment promptly. These signs need more than a change of grooming products.
Painful, bleeding, weeping or pus-covered skin, or a dog who seems unwell	Contact your vet the same day. Avoid experimenting with new skin treatments.

Persistent skin changes deserve attention even when your dog is not scratching.

When is it an emergency?

Dry flakes alone are rarely an emergency. However, sudden facial swelling, breathing difficulty or collapse, including after applying a grooming product, require immediate veterinary care. Stop using the product and contact an emergency clinic.

1. Check the skin before changing the routine

Part the fur in several places, including the back, belly and around the tail. Look for redness, scabs, bald patches and greasy areas.

Take clear photographs and note when the problem started. Record recent shampoos, grooming appointments, food changes and parasite treatments. Mention changes in thirst, appetite, weight or energy to your vet.

These details help distinguish a local skin problem from a broader health issue. Your vet may examine skin samples for parasites, bacteria or yeast, with further testing guided by the findings.

2. Brush gently to remove loose flakes

Regular brushing helps remove loose hair and dead skin cells and distribute natural oils through the coat.

Choose a tool suited to your dog’s coat and use light pressure. Keep sessions short, particularly if your dog dislikes grooming. Stop if they flinch, pull away or the skin becomes red.

Do not scrape at attached scales or pull through tight mats. A sore patch needs assessment, and difficult matting may need professional removal.

3. Choose a shampoo that matches the skin problem

For mild dryness without significant oiliness, a gentle, moisturising dog shampoo may help. Your vet may also recommend a canine conditioner or a leave-on skin moisturiser.

Dogs with greasy scaling, bacterial infections or yeast overgrowth may need a different product. A medicated shampoo should be chosen for the condition being treated.

Avoid choosing the strongest product simply because there are lots of flakes. Some degreasing ingredients can dry or irritate the skin.

4. Get the bathing technique right

When bathing is appropriate:

1. Use lukewarm water and handle the coat gently.

2. Apply the product according to its label or veterinary instructions.

3. Keep shampoo away from the eyes and ear canals.

4. Follow the specified contact time for medicated products.

5. Rinse thoroughly, including the armpits, groin and between the toes.

6. Press dry with a towel, then dry the coat fully without excessive heat.

If shampoo needs diluting, prepare it as directed for that bath and discard leftovers.

If the skin is raw, painful or badly inflamed, ask your vet before starting a new bathing routine. Continue an existing prescribed treatment according to their advice.

How often should you wash a dog with dry skin?

There is no single schedule that suits every dog.

Some dogs need fewer routine baths or a gentler product. Others need regular medicated bathing to control the disease causing their flakes.

Ask your vet about the product, frequency and duration together. If the skin consistently becomes worse after bathing, contact them before continuing the same routine.

5. Review food before adding supplements

Feed a complete and balanced diet appropriate for your dog’s life stage and health. Healthy skin needs adequate protein, essential fats, vitamins and minerals.

If you feed a homemade diet, have its nutritional balance assessed. Adding meat, oil or a general supplement does not guarantee that the overall diet meets your dog’s needs.

Ask your vet whether a supplement would add anything useful to the current diet. Flakes alone do not prove a nutritional deficiency or food allergy.

6. Check parasite protection and treat the underlying cause

Make sure parasite prevention is current and appropriate for your dog. Tell your vet the exact product and when it was last given.

Some mites cause substantial dandruff with little or no itching. “Walking dandruff” mites can also spread between animals and affect people, so mention whether other pets or household members have developed skin irritation. Do not assume every flea product treats every mite.

Treatment may involve parasite medication, targeted skin treatment or a plan for an underlying allergy or illness. Brushing and moisturising alone will not resolve every cause of scaling.

Common mistakes that can make the problem worse

• Using human anti-dandruff shampoo or household detergent.

• Scrubbing harder to remove attached flakes.

• Trying several new products at once, making reactions difficult to trace.

• Applying household oils or essential oils without veterinary advice.

• Repeatedly treating the coat while ignoring itching, odour or hair loss.

Monitor improvement and reduce recurrence

Check whether your dog is more comfortable, scratching less and developing fewer new flakes. Photos taken in similar lighting can help you judge progress.

Keep bedding and grooming tools clean, maintain parasite prevention and continue a manageable brushing routine. Comfortable exercise, enrichment and a predictable routine support general wellbeing alongside the skin treatment.

If mild flaking does not settle within a few days, arrange a veterinary check. For a diagnosed condition, follow the agreed recheck schedule and contact your vet sooner if symptoms worsen.

Frequently asked questions

Can I put coconut oil on my dog’s dry skin?

Check with your vet first. Household oil may be licked off and does not address many causes of dandruff. A treatment formulated for your dog’s diagnosed skin problem is a more reliable choice.

Will washing my dog make the flakes worse?

Harsh products, incomplete rinsing and unsuitable bathing routines can worsen irritation. Correctly chosen and properly used shampoos can be an important part of treatment.

Does my dog need conditioner?

Some dogs benefit from a canine moisturising conditioner or rinse. Whether it is useful depends on the skin condition and other products being used. Follow the instructions for rinsing or leaving it on.

How long does it take to fix a dry, flaky coat?

That depends on the cause. Your vet can explain the expected response and when to reassess. Some underlying skin disorders need ongoing management, so a cleaner coat after one bath does not necessarily mean treatment is complete.

For more practical guidance on your dog’s skin and everyday care, explore ASK A VET™. If flaking keeps returning or your dog is uncomfortable, a veterinary examination is the next step.