I have a hard lump on my left leg on the inside about 2" above my ankle. It started out in January this year as a very small knot I found while rubbing lotion on my leg. It has grown to about the size of a 50 cent piece and is purple/brown in color, similar to the little tiny veins you get on your feet when you get older. I am very active, use treadmill at least 3 times a week, exercise, healthy, eat well, 10 lbs overweight, still work, 70 years old, female. My MD told me it takes a long time to heal something on that part of your leg, but this is getting larger and starts to hurt at times. I have been taking Cephalexin 500 mg because it looked like an infection, but have taken several rounds of that and it hasn't gotten much better. I elevate my foot at night while sleeping. What does it sound like, what specialist area should I contact? Thanks