From last 4-5 years I am suffering from a very strange skin disorder. During the winter times whenever my body warms up even a little bit, a very harsh rash starting all over my body. It gives some sort of sensation as if my skin is on fire. I am unable to wear winter clothes or workout during winter times. Sometime I wake up at night with this all red and burning hot. Even a very simple walk gets it started. Basically I am unable to do anything that could get my body warm. Initially It used to last from 30 sec to about a minute. But with time its duration has increased. Now it last somewhere b/w 2 to 6 minutes. Sometimes it last as long as 10-15 minutes. Times of these breakdowns are very unbearable. I usually avoid public places in winters due to this. It is next to impossible to stop myself from rubbing my body once it start. Whole body turns red although I am not sure if it is due to that allergy or due to the rubbing. Sometimes the body-hairs roots gets stretched out. None of this this happen during summer times. I have consulted a no. Of doctors both Allopathic and homeopathic and gone under a no. Of medication but it keeps on worsening year by year. It isn't even that cold yet and it has started to happen already. It feels as if someone is sticking sharp needles all around my body. Please help me in its diagnosis. P.s.- Doctors have tested my blood for any abnormalities but its all right. There aren't anY.