Cholinergic urticaria in a jogger: ruling out exercise-induced anaphylaxis

Area of Science:

• Dermatology
• Allergology
• Immunology

Background:

• Cholinergic urticaria is a systemic reaction to increased core body temperature.
• Triggers include physical activity, leading to histamine release and a distressing rash.
• Pathophysiology of histamine release remains unclear.

Purpose of the Study:

• To highlight the clinical presentation of cholinergic urticaria in an exercise-induced case.
• To emphasize the importance of differentiating cholinergic urticaria from exercise-induced anaphylaxis.
• To outline effective management approaches for cholinergic urticaria.

Main Methods:

• Case presentation of a 24-year-old jogger experiencing exercise-induced cholinergic urticaria.
• Review of diagnostic challenges in distinguishing urticaria from anaphylaxis.
• Discussion of current management strategies.

Main Results:

• Cholinergic urticaria can be triggered by strenuous exercise.
• Distinguishing between mild urticaria and life-threatening anaphylaxis is a key clinical challenge.
• Effective management involves trigger avoidance and antihistamine therapy.

Conclusions:

• Early recognition and accurate diagnosis of cholinergic urticaria are essential.
• Patient education on trigger avoidance is a cornerstone of management.
• Antihistamines provide symptomatic relief for cholinergic urticaria.