[23M] Experiencing heat and exercise-induced itching

What might be happening

Based on the information you've provided, possible explanations for your symptoms include:

• Cholinergic Urticaria: This is a type of physical urticaria (or hives) that is caused by a physical stimulus such as heat or exercise. It is characterized by the development of small, itchy hives, typically in response to activities that increase body temperature.

  • Treatment typically involves avoiding triggers when possible and taking antihistamines to control symptoms.

• Exercise-Induced Anaphylaxis: This is a rare condition that can cause hives, difficulty breathing, and a drop in blood pressure in response to exercise. However, you did not report difficulty breathing or any other systemic symptoms, making this less likely.

  • Treatment involves avoiding triggers and carrying an epinephrine auto-injector for emergencies.

• Contact Dermatitis: This is an allergic reaction to something that irritates your skin. However, this would typically only affect areas of the skin that have come into contact with the irritant, and would not typically be triggered by heat or exercise.

What you can do

1. Try taking an over-the-counter antihistamine before activities that typically cause your symptoms. This can help to prevent the itching and hives.
2. Keep your skin cool and dry, as heat and sweat can trigger your symptoms. You can do this by wearing loose, breathable clothing and taking cool showers after exercising.
3. Keep a symptom diary to help identify any other potential triggers for your symptoms. This can be helpful information to share with your doctor.

What you should look out for

You should seek immediate medical attention if:

• Your symptoms become severe or you develop new symptoms such as difficulty breathing, swelling of the face or lips, or a drop in blood pressure (symptoms of anaphylaxis).
• Your symptoms do not improve with over-the-counter antihistamines.
• Your symptoms are affecting your quality of life.

Remember, while I strive to provide accurate information, I'm an AI and not a doctor. Please consult with a healthcare provider for an accurate diagnosis and treatment.