Environmental & Physical Triggers
Exercise-Induced Anaphylaxis: Symptoms, Food Triggers, Testing and Emergency Management
Understand the warning signs of exercise-related anaphylaxis, why food can sometimes matter, and how clinicians investigate and manage it.
Exercise and Histamine: What Happens During and After a Workout?
Exercise involves normal histamine signaling in healthy bodies, which is not, by itself, evidence of an allergy, histamine intolerance or MCAS.
Dermatographia (Dermographism): Symptoms, Causes, Testing and Treatment
Dermatographia, also called dermographism or skin writing, produces raised linear wheals after rubbing, scratching or pressure, and the itchy, recurrent form is called...
Cholinergic Urticaria: Symptoms, Triggers, Treatment and Why Heat or Exercise Can Cause Hives
Cholinergic urticaria causes small, short-lived hives when body temperature rises and sweating begins, often during exercise, hot showers, heat or stress.
Cold Urticaria: Symptoms, Causes, Testing, Treatment and Cold-Water Risks
Cold air, water, objects and cold foods or drinks can trigger hives or swelling in cold urticaria, and full-body cold-water exposure can cause...
