Itching in Dogs in NZ: Common Causes and What Helps

Why dogs itch
A little scratching is normal. Constant licking, chewing, rubbing or head shaking means something is off. In New Zealand the usual culprits are fleas, ticks, mites, allergies, skin infections and grass seeds.

Quick checks you can do today

• Run a flea comb over the lower back and tail base. Look for dark specks that turn red on a damp tissue.

• Part the coat and look for ticks, scabs or red patches. After bush tracks, farms or long grass, check closely.

• Look inside the ears for redness, smell or brown debris.

• Feel between pads for grass seeds. Check armpits, groin and under the tail.

Common causes of itch

• Fleas and flea allergy dermatitis: Even one bite can trigger days of scratching.

• Ticks and mites: Risk rises after time in bush, paddocks and long grass.

• Allergies: Pollens, dust mites or food can flare skin, often feet, face and belly.

• Skin infections: Bacteria or yeast love inflamed skin. Hotspots can appear fast.

• Irritants and dry skin: Harsh shampoos or over-bathing can strip oils.

• Grass seeds: Sudden chewing at a paw after a walk is a common clue.

If fleas or ticks are part of the problem
Using proven prevention breaks the bite-itch cycle and helps stop reinfestation. Choose an application you can give on time.

• Simparica Trio chewable tablet for dogs for broad monthly protection in one chew.

• Nexgard chewables for dogs for fast-acting monthly flea and tick control.

• Bravecto chew for dogs for long-lasting flea and tick protection in a single chew.

• Bravecto topical solution for dogs if you prefer a spot-on application.

Simple at-home plan

• Treat every pet in the home on schedule to avoid flea bounce-back.

• Hot-wash bedding and vacuum floors and car seats. Empty the vacuum outside.

• Use a gentle, vet-recommended shampoo and rinse well. Do not over-bathe.

• Do daily tick checks in warmer months and after outdoor adventures.

• Keep a diary of flare-ups, foods and places to spot patterns.

Safety basics

• Dose by your dog’s current weight band.

• Use dog products on dogs only. Never use dog products on cats.

• Do not split packs between pets.

• Keep spot-ons away from children and other pets until dry.

• Read the label each time. If your dog has a health condition or takes other meds, ask your vet first.

When to see a vet

• Constant itch, broken skin or hotspots.

• Ear redness, head shaking or a bad smell.

• Sudden weakness, wobbliness or vomiting after a tick is found.

• No improvement after two weeks of consistent prevention and skin care.

FAQ

I cannot see fleas. Could they still be the cause
Yes. Dogs with flea bite allergy can react to just one or two bites. Treat all pets and clean the environment.

Will bathing fix the itch
A gentle bath can soothe, but it will not solve fleas, ticks or infections on its own. Pair skin care with effective prevention.

How long until scratching eases after I start prevention
Flea-related itch often eases within a few days. Skin can take one to two weeks to fully settle. Stay on schedule.

Can I try an antihistamine at home
Some dogs benefit, others do not. Speak with your vet first for a safe choice and dose.

If you want help matching a product to your dog’s age, weight and routine, contact us and we will give clear, practical guidance.