I was diagnosed with FND this year by a motion specialist. He did a DATSCAN to rule out Parkinson. I have severe tremors in my left hand and intermittent left side face twitching. I am taking an anti seizure medication Primidone 2x a sat which helps some. I also had botox injections in my left hand and wrist which stopped the tremors but I have lost total weakness and inability to to use my hand. It was told it would wear off but it has been over a month. I personally would never do it again.