What causes the itchy reddish rash on the body during cold weather?

Answer 1

This could be a tell-tale sign of HIV seroconversion. Typically one might experience flu-like symptoms with a prolongued fever, general malaise, bad concentration, dizzyness and a red, often non-itchy hive-like rash on the chest, back and sometimes the face and extremeties. If you develop these symptoms and feel you may bear some risk, it's a good idea to get tested for both the antibody and the virus itself. If you are in seroconversion, you may not test positive for the antibodies. Typically, antibodies develop after the body launches its initial assault.

Answer 2

Several reasons that lead to the rashes. Firstly, it is due to the heat we trap in between the clothes. In cold weathers, most of the people will wear wool or several layers of clothes that traps heat. By doing so, we have also done harm to our skin by removing air circulation. Secondly, your skin is incapable of perspiring properly Thirdly, atmosphere is dry and the lack of water in body