I ran a mile today in gym class, and I started to get really itchy. My skin felt very hot like it was on fire, and after I was done running I got a hives on my legs which lasted for ten minutes at least. I'm not sure if I have a reaction to the cold (it was in the high fifties), or the friction, but is this dangerous? Should I tell my doctor about this? I don't want to seem like I'm making excuses to my gym teacher, but I've heard that if you get a rash when you're running then you should stop. Thanks!
Definitely, see a doctor.
Well it could be because your running really hard and the cold air is hitting you well you are warm and then if you scratch it a lot then that would explain the hives.
I'm not a doctor, but I can try to provide some general information that may help you. It's possible that you experienced an exercise-induced urticaria, which is a condition characterized by hives or other allergic reactions during or after exercise. There are different triggers for this condition, such as temperature changes (cold-induced urticaria), sweat-induced urticaria, exercise-induced anaphylaxis, or even pressure-induced urticaria (hives due to friction).
If you suspect that you might have exercise-induced urticaria, it is advisable to consult with a healthcare professional, such as your doctor. They will be able to evaluate your symptoms, take your medical history, and provide an accurate diagnosis. It's important to discuss your symptoms with a healthcare professional because they can help determine the underlying cause and recommend appropriate measures to manage or prevent future episodes.
When explaining your symptoms to your doctor, you can mention the specifics of your activities (such as running a mile in gym class), the environmental conditions (such as the temperature), and the timing and duration of your symptoms (how long the hives lasted, etc.). This information can be valuable for your doctor's diagnosis.
Remember, it's always better to seek professional medical advice rather than self-diagnosing or ignoring potential health concerns. Your doctor will be in the best position to provide you with accurate information and guidance tailored to your specific situation.