Hello,
I have studied your case.
It can be
rotator cuff injury which may need MRI for confirmation.
Another possibility of acromioclavicular impingement.
Medication like methylcobalamine with
muscle relaxant and
analgesic will reduce pain, you can take them consulting your treating doctor.
You may consult physiotherapist for further guidance. He may start TENS ,or
ultrasound which is helpful in your case.
You may need to take rest for early healing.
It is hazardous to take
prednisone with out proper guidance.
You may need to consult orthopaedic doctor.
Also check your vit B12 and vit D3 in your blood.
Hope this answers your query. If you have additional questions or follow up queries then please do not hesitate in writing to us. I will be happy to answer your queries.
Wishing you good health.
Take care
Regards
Dr Vaibhav