Abstract
Exercise-induced urticaria and anaphylaxis have become increasingly recognized during the past 2 decades as more people participate in physical activities. These syndromes can be categorized as cholinergic urticaria or exercise-induced anaphylaxis based on the clinical manifestation. Newer subsets such as food-dependent and familial exercise-induced anaphylaxis have also been recognized. Further studies are needed to characterize the variables involved in mast cell activation and mast cell mediator release in these syndromes. The management strategy for patients who have exercise-induced syndromes with skin manifestations only differs from the management for those with systemic symptoms. Currently, antihistamines, as a single agent or in combination with other agents, may be helpful prophylactically in both groups. Avoidance of precipitating factors, modification of exercise, and use of a self-injectable epinephrine kit are recommended for patients with anaphylaxis.
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