Hi! Lots & lots of physical therapy, massage, workout & stretching. Find a good physical therapist who has dealt with this type of "injury" before or who will go the extra mile to find out what needs to be done & then work real hard for your brother. I still have to stretch my own neck out daily, sometimes throughout the day several times, but it does loosen up & not feel so tight. All that scar tissue will loosen up with time & work. Tell him to get with a PT & work real hard & he will see results. Erik