I was recently diagnosed with left rotator cuff tendonitis. I saw a physiotherapist and she says I will need ultrasound therapy. At the appointment I forgot to ask her whether it is ok for me to play badminton. I'm right handed so I will be using my right side to play badminton. My question is whether it's all right to play badminton using my right arm while my left shoulder is injured? Have you ever been in this situation? Is it ok to continue to play on your good arm? Thanks in advance for your response!