Brenda
Ganglion cysts can be caused by repetitive motions.Taking a guess your work required repetitive movements especially of a twisting turning motion.Short of quiting work,you can try to prevent excessive motion by changing what you can.Try wearing a ankle/foot brace.Make sure it isnt the splinting type usually used for sprains.You want it somewhat stiff but not constrictive.Try a shoe insert made of gel like dr. sgholls,make sure it completely cushions the foot.These tips should help.