Why Is My Dog Itching So Much? 12 Common Causes and Natural Relief

I get asked this more than almost anything.

Your dog is scratching, nibbling, rubbing their face on the carpet, chewing their paws at 2am. You've changed their food, washed their bedding, and you're still Googling at midnight.

I've been there. My first bulldog, Benson, was extremely reactive. My Lola was allergic to everything. GiGi, my rescue Frenchie, still flares up now. Honestly, itchy dogs are the reason Herbal Dog Co exists. So let me walk you through the 12 most common reasons, what to look for, and what I'd actually do about each one.

Is it fleas? (Check this first, even if you can't see them)

Fleas are still the number one cause of itching in UK dogs. You might not see a single flea because some dogs are allergic to flea saliva, and it only takes one bite to set off days of scratching.

What to look for:

• Tiny black specks in the coat (flea dirt, not the fleas themselves)
• Itching concentrated around the base of the tail, lower back, and inner thighs
• Red, irritated skin where they've been nibbling

Put some of the black specks on a wet white tissue. If they dissolve into reddish brown, that's flea dirt. Now you know.

Could it be mites?

Mites are microscopic, so you won't spot them. The two most common in UK dogs are Demodex and Sarcoptes.

• Demodex: patchy hair loss, often around the face and front legs, usually in younger dogs
• Sarcoptes (fox mange): intense, relentless itching, often worse at night, typically starting on the ears, elbows, and belly

If you suspect mites, your vet can do a skin scrape to confirm. This one really does need professional diagnosis.

Environmental allergies (atopic dermatitis)

This is the big one. If your dog itches seasonally (spring through autumn especially) or after walks in long grass, environmental allergens are very likely involved.

Common triggers include grass pollen, tree pollen, dust mites, mould spores, and even certain cleaning products.

What to look for:

• Paw licking and chewing (particularly between the toes)
• Itchy ears
• Red, irritated belly and armpits
• Rubbing the face on furniture or carpet
• Symptoms that come and go with the seasons

Breeds like Labradors, Golden Retrievers, French Bulldogs, Spaniels, and Westies seem to be more prone. Summer (one of our office Frenchies) is the worst for allergies when the warm months hit, and GiGi's skin still flares up regularly. Lola, my first Frenchie, was allergic to just about everything. So I know this one well.

Food sensitivities

Less common than environmental allergies, but worth investigating if the itching is constant and doesn't follow a seasonal pattern.

The usual suspects are beef, chicken, dairy, wheat, and soya. The only reliable way to identify a food sensitivity is an elimination diet under veterinary guidance. Blood tests for food allergies in dogs are unfortunately not very reliable.

Signs that point towards food:

• Year round itching with no seasonal pattern
• Itchy ears alongside gut symptoms (loose stools, wind, gurgling)
• Itching that doesn't improve despite flea and environmental allergy management

Yeast overgrowth

This is the one that gets missed a lot. Yeast (Malassezia) lives naturally on your dog's skin, but when something disrupts the balance (allergies, a weakened immune system, moisture trapped in skin folds), it can overgrow.

The telltale signs:

• Rust brown staining on the paws, between the toes, around the mouth
• A distinctive musty, almost cheesy smell
• Greasy, thickened skin
• Itching concentrated in the ears, paws, skin folds, and under the tail

Flat faced breeds like French Bulldogs, Pugs, and Shar Peis are particularly prone because of their skin folds. Benson, my English Bulldog, had constant yeast issues. It was making lotions and blends to support his skin that led me to start Herbal Dog Co in the first place.

Yeast overgrowth often starts in the gut, which is why topical washing alone doesn't always resolve it. Supporting gut balance alongside gentle skin cleansing tends to make the biggest difference. Our Yeast Dermal Balance Support is what I formulated specifically for this, and it's one of our most repurchased products for a reason.

Dry skin

Sometimes the simplest explanation is the right one. Central heating in winter, over bathing, or harsh shampoos can strip the natural oils from your dog's coat and leave the skin dry and flaky.

What to look for:

• Visible dandruff or flaking
• Dull, rough coat
• Mild, generalised scratching (not frantic or localised)

Switching to a gentle, pH balanced dog shampoo and not bathing too frequently can make a real difference. A good conditioner helps too.

Hot spots (acute moist dermatitis)

Hot spots are angry, weeping patches that seem to appear out of nowhere, usually within hours. They're often triggered by something else (a flea bite, an allergic reaction, a graze) that the dog then licks or chews until the area becomes raw and infected.

They need veterinary attention, especially if they're spreading, oozing, or your dog is clearly in pain. Please don't try to manage a hot spot at home if the skin is broken or weeping. Your vet can get on top of it quickly.

Contact irritation

Some dogs react to things they physically touch: certain grasses, carpet cleaners, fabric softeners, or even the material of their bed or harness.

If the itching is concentrated where skin meets the irritant (belly after lying on a freshly cleaned floor, neck where the collar sits, paws after a specific walk route), contact irritation might be the cause.

Ear infections

If the scratching is focused around the head, and your dog is shaking their ears or tilting their head, an ear problem could be driving the itch.

Breeds with floppy ears (Spaniels, Bassets, Cockapoos) are especially prone because the ear flap traps warmth and moisture. Even our flat faced lot aren't immune. Louie (Jeff's Frenchie) suffers with bad ears, and Honey's big ginger ears need weekly maintenance. You might notice a smell, dark discharge, or redness inside the ear.

Your vet should check any ear that looks sore, smells, or is producing discharge. For everyday ear maintenance between infections, gentle cleaning can help keep things comfortable. Have a look at our Ear Comfort range.

Hormonal imbalances

Conditions like hypothyroidism (underactive thyroid) and Cushing's disease can cause skin changes that lead to itching. These tend to come with other symptoms too:

• Hair loss that's symmetrical (both sides equally)
• Weight gain or changes in appetite
• Lethargy or behavioural changes
• Skin that's slow to heal

If you're noticing these alongside the itch, a blood test from your vet can check hormone levels. This is definitely one for the professionals.

Anxiety and boredom

Not all scratching and licking is physical. Some dogs develop repetitive licking or chewing habits when they're anxious, bored, or understimulated. You might notice:

• Licking the same spot obsessively (often the front paws or wrists)
• The behaviour is worse when they're alone or under stress
• No visible redness or irritation (at least initially)

Over time, this can cause “lick granulomas,” thickened patches of skin from constant friction. If the itching has no obvious physical cause, it's worth considering whether something emotional is going on.

Bacterial skin infections

When the skin barrier is compromised (by allergies, scratching, moisture), bacteria can move in and cause infection. Signs include:

• Small red bumps or pustules
• Circular patches of hair loss
• Crusting or scabbing
• A noticeable smell

Bacterial infections often happen alongside other causes on this list. They rarely occur on their own in otherwise healthy skin.

So where do you actually start?

I know 12 causes feels overwhelming. Here's what I'd do, in order:

1. Rule out fleas. Even if you use a preventative. Do the wet tissue test.
2. Look at the pattern. Seasonal? Constant? After walks? After meals? This narrows it down enormously.
3. Check the ears and skin folds. Smell them. Look for redness, discharge, rust staining.
4. Think about the gut. If there are digestive symptoms alongside the itch (loose stools, wind, gurgling), the gut and the skin are almost certainly connected.
5. See your vet if the skin is broken, weeping, infected, or if your dog is clearly distressed. Please don't wait on this one. I'd always rather say that than have you guessing at home.

For everyday comfort and gentle support, our Dermal Comfort range was formulated by qualified herbalists specifically for itchy, uncomfortable dogs. Everything is made in small batches here in England with human grade ingredients.

When to see a vet

Please book an appointment if:

• The skin is broken, bleeding, weeping, or infected
• Your dog is in obvious distress or the itching is keeping them awake
• You notice hair loss, lumps, or rapidly spreading patches
• The itch has lasted more than a week with no improvement
• Your dog is a puppy or a senior with new symptoms
• You suspect mites or mange

This is for gentle, everyday support. If something feels sudden or severe, your vet comes first. Always.