Hello, I am 21 years old. The thing is there is a nerve on back of my leg which is little swalen up. It has not come recently but it's from past many years. People say there is a separate sac for that to wear it but I don't even one. Sometimes I get little pain that's it. Do this effect me in future? If yes what is the medicine should I take and what is that socks name? please suggest. Tq.