I have a ganglion on my knuckle. After whacking it with a book, which didn't get rid of it, but gave me very sore fingers for a week (!), I asked my doctor what I should do. Since the ganglion was actually interfering with normal hand function and flexibility, the doc said we had two options: surgery or manganese. I am taking 15 mg of manganese daily for six weeks and in three weeks, the ganglion has shrunk markedly. It is also no longer painful. So far, no negative side effects. If there are any, I'll post again. Don't know where the doc heard about this, but I think it's a great alternative to surgery (and book-whacking).
EC: Wikipedia: "A ganglion cyst (also known as a bible bump) is a swelling that often appears on or around joints and tendons in the hand or foot."