What should you know about dog allergy hives?

Hives can appear as raised, pink or skin-coloured patches that itch, change shape, and fade from one area before appearing elsewhere. Dog allergens may be present in dander, saliva, or particles carried on fur and clothing. Swelling beneath the skin can affect the eyelids, lips, hands, or feet; this deeper swelling is called angioedema. Hives and swelling can occur together, but a rash after contact can also have a different explanation.

Move away from the suspected trigger, wash exposed skin, and change clothing if allergen particles may be present. Avoid scratching and keep a record of when the welts begin, how long they last, and whether contact was direct or indirect. A clinician may discuss Antihistamine Treatment; do not start steroid treatment without advice. More background is available under Hives and Itchy Skin.

Get emergency help immediately for trouble breathing, wheezing, throat tightness, faintness, or swelling of the tongue, mouth, or throat. Seek prompt assessment if widespread hives are accompanied by vomiting, dizziness, or rapidly increasing swelling. Arrange a non-urgent review when episodes recur, last longer than expected, or interfere with sleep or daily activities.

Ask whether the timing fits an allergic reaction, whether testing is appropriate, and how to reduce exposure without unnecessary restrictions. Discuss which medicine is suitable for your age and health, and what emergency symptoms should prompt immediate action.