2 days ago, I experienced a gradual burning sensation on my body, that lasted for about 40 mins. It was feverish to the touch and bright red. It happened again today, but was more intense, and I got so hot,it made me lightheaded. Today, it started in my face, and worked its way down to my ankles. It seamed like there was some swelling just above my ankles. Right now, it s like nothing happened.