Use the long edge of a towel or a pillow case and sit it across the affected level as indicated by your therapist, with one edge of the towel/pillow case in either hand
Apply a comfortable but firm pressure by pulling the ends of the towel/pillow case keeping the ends in-line with your eye level/height
Maintaining this pressure, lower one arm below your shoulder (this is the side you will turn to)
Turn your head to look over your shoulder as far as comfortable, towards the side of the arm you just lowered – your other hand should follow your line of sight, always maintaining the same pressure
Repeat this exercise as instructed by your physiotherapist
Precautions
If you experience any temporary symptoms regarding lightheadedness, dizziness, double vision or extreme pain stop the exercise immediately and contact your physiotherapist
If any of these symptoms persist, present to your nearest emergency department immediately