I get cramps in my right foot only yet my Parkinson's is worse on my left side... go figure. I get them so bad that my foot almost folds in half and it feels like the bones are going to break. A friend of mine with MS uses some cream that works for him. So I got some. It's supposed to be organic. All I know is as soon as I put some on my foot the cramp is gone. Its a company called Sootheen. I order off their internet site. I also get massive lower back cramps and thighs as my meds wear off and this stuff works good for that as well.