1. What Are Hives?
“Hives are itchy red or pink spots that develop on your skin. They often come up quickly and are intensely itchy. They last anywhere from several minutes to several hours, then disappear without a trace. They can appear as scattered red bumps or as large raised areas with pink edges and white or clear centers. Hives are also called welts or, in medical terms, urticaria.
2. Exercise Can Induce Hives
Many things can cause hives, including foods and medicines. In some people, especially younger people, hives can be triggered by exercise. In people with exercise-induced urticaria, the hives usually develop when the body begins to warm up after exercising for a period of time. The itchy hives can develop anywhere, but commonly occur on the stomach, back or chest. The rash develops quickly, and can intensify into a maddening itch.
3. Eating Before Exercise Can Trigger Hives
Eating certain foods prior to exercising seems to trigger the hives in some people. Specifically, eating cheese, seafood, celery or wheat within a few hours of starting exercise can trigger an outbreak in susceptible persons. It has also been noted that certain medications can cause an outbreak. People who have exercise-induced hives sometimes react to taking non-steroidal anti-inflammatory drugs (NSAIDs) such as aspirin, ibuprofen or naproxen. In these people, the hives are triggered only if they take one of these medications before they exercise.
4. Exercising in Cold Weather Can Trigger Hives
In some people, exercise-induced hives only occur if they exercise in cold weather. This can affect skiers, people who jog in cold weather, or even people who swim in the ocean. The hives can be triggered when their cold skin is warmed by the exercising.
5. How to Prevent or Treat Exercise-Induced Hives
If you are exercising and develop an itchy red rash, stop exercising. If the hives do not go away after 10 to15 minutes, call your physician. For some people, not eating for four hours before exercising can prevent an outbreak. Similarly, avoiding aspirin or other NSAIDs for six hours before exercising can limit outbreaks. In rare cases, exercise-induced hives can be associated with swelling of the throat or mouth, difficultly breathing or even death. If you have any episodes of swelling of your mouth or throat or difficulty breathing or swallowing, seek immediate medical help. Often, patients with such high-risk allergic reactions must have an Epipen at all times, and should never exercise alone.”
Are you worried you might have hives? Consult a dermatologists now.