During my nursing career have worked with use of Botox in research studies for tight vocal cords of spasmotic dysphonia and muscular contractions. In those instances it worked well but hadlimited duration, usually about 3 months or less. Have not experienced use in neck muscle contractions from radiation. With
Use of Botox is often accompanied by physical therapy for muscle treatment or speech therapy for vocal cords. Has your doctor suggested any additional physical therapy, exercises, or heat treatments?

Linda