dog hives; a dog sits in an on open field. xxmmxx/iStock / Getty Images Plus via Getty Images. In This Article. Summary.Any allergen your dog is sensitive to may lead to hives. Common causes of dog hives include
Food allergies: Certain proteins in a dogs diet can trigger an allergic response in dogs prone to allergies. Environmental allergens: Tree or grass pollens, dust or mold can cause hives in sensitive dogs.
Dog food allergies typically occur from proteins, wheat or dairy. If your dog develops hives, bumps, rash, hives, redness, swelling, diarrhea, vomiting etc., it may be a food allergy.
Hives (urticaria): Hives on dogs are red, raised bumps that can appear suddenly and are usually itchy. They can also disappear just as fast as they appear. Hives in dogs occur as individual bumps or clusters of various sizes and shapes.
When your dog develops hives, your first instinct is to help them get relief quickly. Here are some safe, effective home remedies to manage mild to moderate cases of hives in dogs.

Environmental, chemical, food (dietary), or other allergens your dog may be sensitive to can trigger hives. Common causes include: Insect bites or stings (often on a dog's head or neck).