I found a limp suddenly that was on my left leg close to the inside ankle. It is red and sore to touch. The doctor referred to it as an Auto Immune disorder and the name got away from me. He gave me the Medrol 4mg pack and told me to put heat on it over the weekend. Does anyone know the name for this? It reminds you of what a blood clot looks like when formed. He said if it got larger that I was to call and we may have to also take an antibiotic.