Gary Jacobson wrote:

Anyone else had this problem, and did it lead to a change of *cycling
habits*? (It used to be thought that these things could be cured by hitting
them with a bible.
Maybe I need to consult a nun who rides.)

My non-cycling wife had one two years ago, I whacked it with a heavy
book (I think it was "Organic Chemistry"!) and it never came back (the
ganglion that is, not the wife).