MAG, I was treated with cortisone and or anti infamatory drugs for several years for so called tendonitis in my shoulder until in desperation and I think to shut me up because I am a Registered Nurse my Gp sent me for physiotherapy. Guess what it wasn't my shoulder at all, it was my cervical spine causing all the trouble. I would advise you get the opinion of a Physiotherapist before embarking on potentially damaging treatment.

Melodeon