If you’ve ever seen red, swollen bumps suddenly appear on your dog’s skin, it can be frightening. These bumps are known as hives, and while some cases are mild, others may be a sign of a serious allergic reaction.
So how do you know when dog hives are just uncomfortable—and when they’re a true emergency? This guide will help you decide when to act fast, what causes hives, and what treatment options are available.
Are Dog Hives an Emergency?
Dog hives can be an emergency if they appear suddenly and are accompanied by swelling around the face, difficulty breathing, vomiting, or signs of shock. These may point to a severe allergic reaction known as anaphylaxis, which requires immediate care.
If your dog has hives and is acting strangely or showing signs of distress, visit a 24 hour emergency vet right away.
What Are Hives in Dogs?
Hives, or urticaria, are raised, red welts that appear on the skin. They can show up anywhere on the body but are most often seen on the back, belly, neck, and face. They may also cause your dog’s fur to puff up in certain areas.
Some dogs get hives that go away quickly, while others may experience swelling that spreads or becomes painful. The cause usually involves an allergic reaction to something your dog has touched, eaten, or been bitten by.
What Do Dog Hives Look Like?
Here are the most common signs of hives in dogs:
- Small, raised red bumps or welts on the skin
- Swelling around the eyes, lips, or ears
- Excessive scratching or licking
- Patchy hair loss near the welts
- Sudden onset after eating, grooming, or being outdoors
Some dogs may also develop facial swelling, which can look alarming. If swelling begins to affect the throat or breathing, it becomes an emergency.
When Should You Worry About Dog Hives?
Hives alone aren’t always dangerous. But they can quickly turn into an emergency depending on how your dog reacts. Here’s when to take urgent action:
| Symptom | Emergency Level |
|---|---|
| Hives + Facial Swelling | Moderate to High – Call vet immediately |
| Hives + Trouble Breathing | High – Go to emergency vet |
| Hives + Vomiting or Diarrhea | High – May be severe allergic reaction |
| Hives only, no other symptoms | Low – Monitor and call vet if unsure |
If you’re uncertain, use 24houremergencyvet.com to find a nearby vet open now for quick advice.
What Causes Hives in Dogs?
Hives are usually caused by an allergic reaction to something in the environment. Common triggers include:
- Insect bites or stings (like bees or ants)
- Vaccines or medications
- Certain foods or treats
- Shampoos or grooming products
- Pollen, grass, or mold
- Latex, rubber, or plastic materials
The reaction usually happens fast—within minutes to an hour after exposure. Even if your dog has had the same food or grooming product before, they can still develop a reaction suddenly.
Are Hives Painful for Dogs?
Hives themselves aren’t usually painful, but they can be very itchy and uncomfortable. Your dog may scratch or lick the affected areas excessively, which can lead to skin damage or infections if left untreated.
Some dogs may also become anxious or restless due to the discomfort, especially if swelling is present.
What Should You Do If Your Dog Has Hives?
If your dog breaks out in hives, take these steps:
- Check for facial swelling, trouble breathing, or other emergency signs
- Try to identify any recent changes (new food, bites, shampoo, etc.)
- Avoid giving any medication unless advised by a vet
- Keep your dog calm and prevent scratching
- Call a 24 hour emergency vet clinic if symptoms get worse or don’t improve
Hives can get better within hours, but some dogs need antihistamines, steroids, or other medications to calm the reaction.
Can You Treat Dog Hives at Home?
Only treat at home if your dog has mild hives and no other symptoms. You can:
- Give a cool bath using mild, fragrance-free shampoo
- Apply a cold compress to swollen areas
- Keep your dog indoors and calm
Never give human allergy meds like Benadryl without speaking to a vet first. Doses vary based on your dog’s size and condition.
How Vets Treat Dog Hives
At an emergency animal hospital, the vet will assess the reaction and provide treatment as needed. Common treatments include:
- Antihistamines to reduce allergic response
- Steroids for swelling and inflammation
- Oxygen or IV fluids for serious cases
- Further tests to identify the trigger
Most dogs improve quickly with the right treatment. In severe cases, they may need to stay under observation overnight.
Cost of Emergency Treatment for Dog Hives in the UK
Costs can vary depending on the severity of the reaction. Here’s a general idea for UK dog owners:
| Treatment | Estimated Cost (UK) |
|---|---|
| Emergency consultation | £100 – £200 |
| Antihistamine injection | £40 – £90 |
| Steroid injection | £60 – £120 |
| Overnight observation | £300 – £600 |
Contact your local 24 hour vet clinic for an exact quote and care plan.
How to Prevent Future Hive Reactions
If your dog has had hives before, you can take steps to prevent future outbreaks:
- Keep a list of known allergens and avoid them
- Choose fragrance-free grooming products
- Check outdoor areas for insects or plants that may trigger reactions
- Discuss allergy testing with your vet
- Ask about a pre-treatment plan before vaccinations or medications
Prevention goes a long way in protecting your dog from allergic emergencies.
When in Doubt, Don’t Wait
Hives may seem minor at first, but allergic reactions can escalate quickly. Don’t wait for serious symptoms to appear. If your dog seems uncomfortable or if you’re unsure, call a 24 hour emergency vet for guidance.
Conclusion
Hives in dogs are often harmless, but they can be the first sign of a severe allergic reaction. Always watch closely for facial swelling, breathing trouble, or vomiting. When in doubt, it’s better to act quickly than to risk your pet’s health.
Need help now? Visit 24houremergencyvet.com to find a trusted 24 hour emergency vet near you and get your dog the fast care they need.