The best way to prevent hives is to identify the cause and avoid it, but this is easier said than done since most causes remain unknown. One reason that it is difficult to pinpoint an exact source is because hives are commonly triggered by a combination of factors. One preventive measure that you can take is to keep an antihistamine on-hand and take it the first signs of hives or itching. However, please note that older adults and people with heart disease should check with their doctor before taking any antihistamines.
A few things you can generally avoid to prevent a hives outbreak are:
- Extreme temperature changes (hot showers,cooling down after a workout)
- Medications like aspirin and other over-the-counter pain medications (Acetaminophen – Tylenol or generic – is usually fine.)
- Poor sleep
- Drastic changes in diet (rich restaurant meals, very spicy foods)