From past few years, during winters mostly, my body itches after I eat something spicy, do a strenuous activity, go out in the sun or if there is too much heat in the room. Due to this, sometimes I feel cold and sometimes hot even when others feel cold. Taking a bath, cold water, moisturizing cream helps I feel. Smoking a cigarette also helps I feel (I might be wrong) I took some Ayurvedic medicines but they did not help much. They told me it was due to impurities in blood maybe. This repeats every year in winters. I do not know if I have any allergies.