Itchy body after exercise is not fat burning, there is a possibility of cholinergic urticaria, which is due to heat, mental stress, intake of hot food, drinks or increase in body temperature after exercise, the increased blood flow stimulates the thermoregulatory center of the brain, excites cholinergic nerves and releases acetylcholine. Since the body is more allergic to acetylcholine, it is called cholinergic urticaria. There is also a condition in which itching occurs due to increased blood flow after sudden exercise after a long period of inactivity and untimely discharge of sweat from the skin. If this phenomenon continues to occur, the first thing to do is to reduce the amount of exercise, because the load is too great the organism can not adapt, can not give the skin sufficient time to repair, so to reduce the amount of exercise, if the itching is unbearable can use anti-allergy drugs.