Common triggers that cause hives

The most common skin allergy triggers that cause hives include:
• Medication such as antibiotics, codeine, penicillin, sulfa, anticonvulsant drugs, phenobarbital, and aspirin

• Foods like shellfish, nuts, tomatoes, soy, chocolate, and berries

• Pollen

• Cat dander

• Insect bites such as bee ans wasp stings

Other causes of hives include: emotional stress, bacterial - viral - fungal infections, hepatitis B, parasitic worms, food additives, plants, cold temperatures, heat, sweating, and dermatographism (irritation from pressure or tight fitting clothes).

symptoms of hives
Symptoms of urticaria are caused by histamine release from mast cells that exist deep within the skin. Common symptoms include:
• Sudden onset

• Red or skin colored welts that resemble mosquito bites

• Welts change quickly re: size, shape, & location

• Itching

• Welts commonly last about 24 hours

• Angioedema - swelling of lips, face, and tongue
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