Exercise-induced anaphylaxis

Exercise-induced anaphylaxis (pronounced ex-er-cise in-duced an-a-phy-lax-is) is a rare but serious allergic reaction that occurs after physical activity. The exact etymology of the term is derived from the Greek words "anaphylaxis" meaning "against protection" and "exercise" from the Latin "exercitium" meaning "to keep busy or to work".

Symptoms

Symptoms of exercise-induced anaphylaxis can vary from person to person, but they often include hives, difficulty breathing, nausea, and dizziness. In severe cases, it can lead to a life-threatening allergic reaction known as anaphylactic shock.

Causes

The exact cause of exercise-induced anaphylaxis is unknown, but it is thought to be triggered by a combination of physical activity and exposure to certain allergens. Some people may also have a genetic predisposition to the condition.

Diagnosis

Diagnosis of exercise-induced anaphylaxis is typically made based on the patient's symptoms and medical history. Tests may include a skin prick test to identify potential allergens, and an exercise challenge test to confirm the diagnosis.

Treatment

Treatment for exercise-induced anaphylaxis typically involves avoiding known triggers and carrying an epinephrine autoinjector to use in case of a severe reaction. In some cases, antihistamines or corticosteroids may also be prescribed.

Prevention

Prevention strategies for exercise-induced anaphylaxis include avoiding exercise during peak pollen times, avoiding exercise after eating certain foods, and warming up slowly before exercise.

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Exercise-induced anaphylaxis