What is flea allergy dermatitis
Some dogs are allergic to flea saliva. One bite can trigger days of intense itch, especially over the rump and tail base. You might see red skin, scabs, hair loss or constant scratching. The good news. A steady plan settles the skin and stops new bites.
Your 5-step relief plan
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Start reliable flea control today
Choose an application you can give on time, every time. For dogs, proven options include:
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Simparica Trio chewable tablet for dogs for simple monthly cover.
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Nexgard chewables for dogs for fast-acting monthly flea control.
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Bravecto chew for dogs for long-lasting flea protection with fewer dates to remember.
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Bravecto topical solution for dogs if you prefer a spot-on application.
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Treat every pet in the home
Untreated pets keep the flea life cycle going. Dose all dogs and cats on the same day to avoid bounce-back. -
Clean the environment
Wash bedding hot, vacuum floors and car seats, and empty the vacuum outside. Repeat weekly for a month to catch emerging fleas. -
Soothe the skin
Use a gentle, vet-recommended shampoo and cool water. Avoid harsh products. If skin is broken, smelly or very red, book a vet visit for targeted care. -
Stay consistent for 3 months
Flea eggs in the home can hatch for weeks. Keep prevention on schedule and set phone reminders. Most itchy dogs settle once new bites stop.
Simple safety tips
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Weigh your dog and choose the correct pack each time.
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Use dog products on dogs only. Never use dog products on cats.
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Do not split doses between pets.
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Read the label before every application. Keep spot-ons away from children and other pets until dry.
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If your dog has a health condition, is pregnant, or takes other medicines, ask your vet first.
When to see your vet
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Constant itch with broken skin or hotspots.
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Signs of skin infection like smell, oozing or pain.
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No improvement after two weeks of consistent prevention and cleaning.
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You are unsure how to switch products safely or time doses.
FAQ
Can one flea bite really cause all this scratching
Yes. Dogs with flea bite allergy can react to a single bite, which is why strict, on-time prevention is key.
How long until my dog is comfortable
Many dogs improve within a few days once new bites stop. Skin can take one to two weeks to fully settle. Keep going with your plan even if you cannot see fleas.
Do I need to treat my indoor-only cat too
Yes. Fleas hitchhike indoors. Treat all pets to stop the cycle.
Chew or spot-on. Which should I pick
Choose the application you can give on time. Chews suit swimmers and hands-off homes. Spot-ons suit owners who prefer a quick skin application.
Need help matching a product to your dog’s age, weight and routine
Our vet-led team can guide you. Contact us.
