Flea allergy dermatitis in New Zealand: signs and relief
Introduction
Some pets are allergic to flea saliva. One or two bites can trigger intense itch, scabs and hair loss, especially around the tail base. Steady prevention and gentle skin care reduce flare-ups. Guidance reviewed with input from Dr. Feargus McConnell, BVSc.
How FAD shows up
Look for sudden itch, chewing or over-grooming at the tail base, rump, belly or inner thighs. You may not see fleas, only black grit (flea dirt) or scabs from scratching.
First steps at home
Treat every dog and cat in the house with the correct weight band. Start a 90-day environment reset: vacuum rugs and sofa seams, hot-wash bedding, and keep mats clean and dry. Use lukewarm baths and a mild, vet-approved shampoo if bathing helps your pet relax.
Comfort tips during a flare
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Towel dry to the skin after rain or baths
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Brush gently to remove loose hair around sore zones
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Keep nails trimmed to reduce skin damage from scratching
When to see your vet
If your pet has raw skin, ear issues, hot spots, or the itch does not settle within a few days on prevention, book a check. Your vet can prescribe relief for the itch, treat any infection and confirm the best product plan.
Products we trust
Dogs
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Monthly fleas and ticks: NexGard Chewables for Dogs
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Monthly all-in-one: Simparica Trio Chewable Tablet for Dogs
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Longer-acting fleas and ticks: Bravecto Chew for Dogs
Cats
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Broad monthly spot-on: Revolution Plus Spot-On for Cats
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Longer-acting fleas and ticks: Bravecto Spot-On for Cats
Safety basics
Match species, weight band and minimum age. Do not stack preventives unless your vet advises. Store products cool and dry.
FAQ
We never see fleas. Could it still be FAD
Yes. Allergic pets can react to very small exposures. Keep prevention steady and run the 90-day reset.
Need help balancing skin care with the right product choice
Share your pet’s history and we will tailor a plan — contact us.
Also in Dr. Feargus’ New Zealand Pet Health Blog
Does My Dog Need a Worming Tablet?
If you’re wondering whether your dog really needs a worming tablet, the answer is yes.
Even healthy-looking dogs can carry worms without showing any signs.
Why Is My Dog Scratching More in Spring?
Spring in New Zealand is a beautiful time of year. But if your dog suddenly can’t stop scratching, biting, or licking their skin, it can be worrying.
How to Choose the Right Flea, Tick, and Worm Treatment for Your Pet in New Zealand
If you’ve ever stood in front of a wall of pet treatments and wondered which one to buy, you’re not alone.
