I strongly recommend PT. My neck too was hard as a rock with fluid from radiation. What do they do? First you get to lie in cozy warm heating pads for about 10-15 minutes which make you feel wonderful. Then they massage the neck up and down and side to side. I don't know the names of the specific moves he did. There were also moves to improve my neck rotation from side to side and up and down. He also did intra and extra oral massage to help with the minor trismus I had and lack of saliva. I also had a winged scapula which he treated. And my PT ended every session with a minor back massage. All very worthwhile and covered by insurance. Tell your ENT to give you a script, he is not paying for it, why should he care. And go find yourself a PT who specializes in head and neck problems.

Take care,
Eileen