i have a problem with my skin. When I contact with cold, perspiration or when the waether change immediately, my skin is itched and become red, it is always appear in my arms, legs, back. I feel very uncomfortable. Please tell me the reason and how to treat it. i have had to meet doctor, they gave me some allery medicine. If i used it, my skin was OK, but when I did not use it happened again.
Thanks a lot