Despite all the health benefits of exercise, some people may need to use caution when designing their exercise routine. For some people exercise can trigger an allergic reaction that can pose severe health risks in some cases. It is good to know the basics about potential health problems, however if you feel you are at risk of experiencing exercise-induced allergies you should ask your doctor about the severity of your condition.
Background
An allergic reaction occurs when your body mistakes an allergen such as pollen or dust mites as a harmful intruder. Mast cells in your body release compounds such as histamines to fight off the allergen. You have mast cells in tissue lining the nose, throat, digestive tract and skin. When mast cells release histamines in response to an allergen, the nearby tissue swells. You may experience a runny nose or sneezing as your body tries to eject the allergen. Red skin and itching can also occur.
Effects
In some cases, exercise can induce an allergic reaction called an exercise-induced allergy. Exercise-induced allergies typically consist of a warm feeling that spreads throughout your body along with red and itchy skin. In rare cases exercise can lead to a potentially life-threatening allergic reaction called anaphylaxis. During anaphylaxis, you may experience shortness of breath, light-headedness, red itchy skin and nausea, among other symptoms. The American Academy of Allergy Asthma & Immunology, or AAAAI recommends seeking medical care if you think you are experiencing anaphylaxis.
Triggers
Exercise-induced allergies may be equally likely to be triggered by many levels of physical exertion and many physical activities, according to Dr. Robert Hosey and colleagues in an October 2001 article in "American Family Physician." Whether you experience allergies while exercising may relate to the foods you eat beforehand. Seafood, celery, wheat and cheese are suspected of contributing to exercise-induced allergies.
Precautions
Careful modification of your exercise habits is the first way to combat exercise-induced allergies, say Dr. Hosey and colleagues. Exercise with a partner who can help you get treatment should you have a severe reaction. Avoid exercise for 4 to 6 hours after eating. Ask your doctor which medications are safe to take before exercising. Do not exercise during menstruation. Also cease exercise as soon as you begin experience allergic symptoms and seek medical care if the symptoms do not go away.
Caution
The severity of an allergic reaction can vary from a small annoyance to a life-threatening condition. Severe allergic reactions such as anaphylaxis can result in death, according to the AAAAI. If you believe you are prone to exercise-induced allergies, speak to a doctor to get the best advice on how best to balance your exercise routine with potential allergic reactions.


