Maybe he's having a whiskey or 2 I heard that helps with spasmodic dysphonia short term, also CBD or thc-cbd oil. He is most likely having botulinum toxin injections. The only prescribed medicine for it and doesn't cure it so I hope he isn't and going with the whiskey or weed alternatively I hope he tries black seed oil, the oil can help short term and long term helps with muscle spasms which is what spasmodic dysphonia is I thought, muscles spasms around your vocal chords. Helps everything Nigella sativa (black seed oil) especially is proven to heal neurological disorders. I have been taking for years and several issues have completely disapeared I would recommend to all pede anons.