Since I was 13-year-old after exercising or going to pool my body was full of nettle rash. I changed 3 different doctors, 5 different drugs but it is still appearing.
After work out it looks just like a rash, but after being in pool it's worse. (it happens only in pool, where they use chloride, normal water during bath is ok). It also happens after walking in cold/hot weather.
They said its a type of urticaria, gave me medications but it's not better. Is it some kind of allergy or?