I had one... a LONG time ago, on the top of my wrist... this is my doctor said to do (what they did in the old days) whack it a few times a day with the the Bible. HAHA Back in the old days the bible was in EVERY household and it was big and hardcover. I just whacked it against any hard surface a couple times a day, it didnt hurt too much and within a couple weeks it went away. Never came back! I had it when I was like 15 years old. Im 31 now and never had it again!

Good Luck!