Has this happened to anyone? About one week ago, I wore for first time a sports jacket to running. It was made of a kind of waterproof clothing on the inside. I suppose it was for protecting against cold weather. Anyway, the thing I want to tell is that I had a lot of red marks on my right side of my body. It has gone by a week and I still have these marks. Maybe it is an allergic reaction or maybe I have been stung by a bug, as they look like a lot of red points. They do not sting yet but my skin is inflamed. However, my left side of my body is fine, so that the bug’s hypothesis is more likely. Has something similar happened to anyone? Perhaps I should go to a doctor.