Exercise-induced anaphylaxis

Exercise-induced anaphylaxis is a rare but severe allergic reaction that occurs after physical activity. It can occur in response to any form of physical exertion, including running, swimming, and even walking. The symptoms can range from mild, such as hives and itching, to severe, such as difficulty breathing and loss of consciousness.

Symptoms

The symptoms of exercise-induced anaphylaxis can vary from person to person, but they typically include:

• Hives (urticaria)
• Difficulty breathing
• Swelling of the face, lips, or tongue
• Nausea or vomiting
• Dizziness or fainting
• Chest pain or tightness
• Palpitations

Causes

The exact cause of exercise-induced anaphylaxis is unknown, but it is thought to be related to the release of certain chemicals in the body during exercise. These chemicals can trigger an allergic reaction in some people. In some cases, the reaction may be triggered by eating certain foods before exercise.

Diagnosis

Diagnosis of exercise-induced anaphylaxis can be difficult, as the symptoms can be similar to those of other conditions. The diagnosis is usually based on the patient's history of symptoms occurring after exercise. Tests may be done to rule out other conditions.

Treatment

Treatment for exercise-induced anaphylaxis includes avoiding known triggers, such as certain foods before exercise, and taking medications to control symptoms. In severe cases, emergency treatment may be needed to manage anaphylaxis.

Prevention

Prevention strategies for exercise-induced anaphylaxis include warming up before exercise, avoiding exercise during hot or cold weather, and avoiding exercise if you are feeling unwell or have eaten a known trigger food.

See also

• Anaphylaxis
• Exercise
• Allergy