Dog hives after an insect sting
Hives mean call for guidance. Hives plus vomiting, weakness, or breathing effort mean leave for the ER.
Do this first
| Scenario | Insect sting / allergic reaction |
|---|---|
| Vet vs poison control vs ER | Localized mild swelling can often be directed by your regular vet by phone. Facial swelling, hives with lethargy, vomiting, or breathing changes are ER now. Poison control is secondary unless a toxin was also involved. |
Immediate action steps
- Move to a safe area away from further stings
- If a stinger is visible at the skin surface, scrape it away horizontally
- Watch for facial swelling, hives, vomiting, collapse, or breathing change
- Call your veterinarian or ER immediately for swelling of the face, throat, or any breathing effort
- Do not give human antihistamines or epinephrine unless a veterinarian has already prescribed a plan for this pet
Map the skin
Note where welts appeared and whether they are spreading. Take a quick photo for the clinician.
Avoid hot baths and frantic scratching that worsen swelling.
The next hour
Set a timer. Recheck gums, energy, and breathing.
If anything escalates, do not wait for the timer to finish.
This is general information, not a diagnosis. Contact your vet for anything urgent or unclear.
FAQ
- Benadryl dose from the internet?
- Do not dose from a search result. Ask a veterinarian for this dog’s weight and situation.