Bluebottle Stings on Dogs: What to Do at the Beach

Quick answer: If your dog is stung by a bluebottle, move them away from the water, protect your hands and gently remove any tentacles, and rinse the area with seawater. Do not use vinegar. Call your vet straight away if your dog has mouthed or eaten a bluebottle, has swelling around the face or throat, or is struggling to breathe.

Bluebottles are one of the most common sights on Australian beaches in the warmer months. They look like little blue balloons on the sand, and to a dog they can look like a toy.

Most stings are painful rather than dangerous. But a sting to the mouth or throat can be serious, so it pays to know what to look for and what to do.

What is a bluebottle, and can a dead one still sting?

A bluebottle (Physalia) is a floating marine creature with long blue tentacles covered in stinging cells. They are often blown onto beaches, sometimes in large numbers.

Yes, a dead or stranded bluebottle can still sting. CSIRO scientist Dr Lisa-Ann Gershwin told the ABC that the stinging cells work independently of the animal, so a washed-up bluebottle or a loose tentacle can still fire. The Animal Poisons Helpline also warns that beached bluebottles "can retain the ability to sting".

Dogs can be stung by sniffing, mouthing or stepping on them, or even by picking up a stick that has touched one.

What are the signs of a bluebottle sting on a dog?

Stings hurt straight away, so you will usually notice a sudden change in your dog. Watch for:

Yelping, crying out or suddenly stopping play
Pawing at the face or mouth
Drooling or vomiting
Licking or favouring a paw, or limping
Swelling around the lips, mouth or throat
Trouble breathing, weakness or collapse (an emergency)

The Animal Poisons Helpline notes that dogs who eat bluebottles may be stung in the mouth and throat. This can cause local swelling and, rarely, breathing difficulties or a severe allergic reaction (anaphylaxis).

What should I do if my dog is stung by a bluebottle?

Stay calm and keep your dog as still as you can. A dog in pain may snap, even a gentle one, so take care around the face.

Move away from the water. Take your dog up the beach, away from any other bluebottles on the sand.
Protect your hands. Use gloves, a towel, a plastic bag or a bit of clothing. Never use bare fingers, or you may be stung too.
Gently remove any tentacles you can see on the fur, paws or skin.
Rinse with seawater. Australian first-aid advice for people is to wash a bluebottle sting with seawater.
Do not use vinegar. The Royal Australian College of General Practitioners advises against vinegar for bluebottle stings, as it may cause the stinging cells to fire. Vinegar is for tropical box jellyfish, not bluebottles.
Call your vet for advice, especially if the sting is on the face, or your dog mouthed or swallowed a bluebottle.

In people, hot (not scalding) water is the recommended way to ease bluebottle pain. Please ask your vet before trying this on your dog. Dogs can't tell you when water is too hot, and fur can hold heat against the skin.

If you are worried your dog has eaten a bluebottle, the free Animal Poisons Helpline (1300 869 738) can also give advice. Our dog first aid guide covers what to pack in your beach bag.

When should I take my dog to the vet?

Go to a vet straight away, or the nearest emergency vet after hours, if your dog:

Has chewed, mouthed or swallowed a bluebottle
Has swelling of the face, lips, tongue or throat
Is struggling to breathe, wheezing or gagging
Is weak, wobbly or collapses
Keeps vomiting or drooling heavily

The Animal Poisons Helpline advises that dogs who have eaten or chewed a bluebottle should be taken to a vet for assessment and observation. Save local numbers in your phone before summer with our Northern Beaches emergency vet contacts.

For a mild paw sting with no other signs, a call to your vet is still a good idea. They can tell you what to watch for over the next few hours.

How can I stop my dog getting stung at the beach?

You can't control the ocean, but a few habits make a sting much less likely.

Check conditions first. Surf Life Saving Australia's Beachsafe website and app give information on conditions and lifesaving services for Australian beaches, plus advice on marine creatures.
Walk the shoreline before unclipping the lead. The Animal Poisons Helpline suggests checking the sand first, especially in the days after strong onshore winds.
Keep your dog on lead if bluebottles have washed up. It is the simplest way to stop sniffing and mouthing.
Teach a solid "leave it". A dog who drops things on cue is a safer beach dog.
Don't throw sticks or balls through bluebottle patches. Toys and sticks can pick up tentacles.
Pack a small kit: gloves or a plastic bag, a towel and fresh water to drink.

For more on sun, surf and sand, read our complete guide to beach safety for dogs in Australia.

FAQs

Can a bluebottle sting kill a dog?

Most stings cause pain rather than serious harm. However, stings in the mouth or throat can cause swelling and, rarely, breathing problems or a severe allergic reaction. Treat any sting to the face, mouth or throat as urgent and call your vet.

Should I put vinegar on my dog's bluebottle sting?

No. Australian medical advice is not to use vinegar on bluebottle stings, as it may make the stinging cells fire. Remove tentacles with protected hands, rinse with seawater and call your vet.

My dog ate a bluebottle on the sand. What should I do?

Call your vet or go to an emergency vet. Dogs that eat bluebottles can be stung in the mouth and throat, and vets recommend assessment and observation. Skip home remedies and follow your vet's advice.

Do washed-up bluebottles still sting?

Yes. Stranded and dead bluebottles, and loose bits of tentacle, can still sting. Keep your dog away from them, and avoid picking them up yourself.

When are bluebottles most common?

They tend to be seen most in the warmer months and often wash up after strong onshore winds. Check Beachsafe and look along the waterline before you let your dog off lead.

Heading to the beach this summer? The Pawfetchers waterproof AirTag holder keeps your dog's AirTag clipped to their collar on sandy, splashy days. AirTag sold separately.