Is it possible to treat or ease RSI using crystals? If so which crystals would do the job? I would like to buy a crystal for my brother (if he won’t laugh at me!) how do I choose a good crystal for him? He’s seeing a physiotherapist because he’s a drummer and has been getting really painful wrists – it’s improving now since he got his neck cracked to align the spine and nerves, but maybe there might be a crystal he could have by him whilst he’s sleeping to help it from getting worse again?