Can be a wide array of things . Would like to know a few more details in history & an X Ray to start with for proper assessment , before providing an appropriate opinion & further plan of action . Meanwhile if pain is severe , in his situation. Tab Dolo 650mg can be given (SOS) (NOT MORE THAN 3 TABLETS PER DAY) . Please consult me on Practo for the same as per your convenience.

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Keeping his age in view , we need to know what kind of pain it is - example : inflammatory or non inflammatory and prescribe pain killer accordingly after knowing his co morbidities.

Shoulder pain may be a local pain like joint stiffness , ligament sprain or tendon inflammation Or a referred pain due to nerve pressure in neck. Since he is asthmatic it's best to avoid pain killers Continue with paracetamol 1gm every 8th hrs. Application of warm compress helps it. Apply analgesic cream

Should be discussed Kindly contact

Kindly discuss for your concern

Can help you kindly provide me detailed history for proper diagnosis and further management

Recording to your sign and symptom your uncle is suffering from muscular pain of the shoulder. In this case your uncle can take as a treatment some muscle relaxant with calcium and multivitamin. Tablet - flexon Mr two time per day after food and Cap - Omez ones  one time and  Tab Calcium one time and multivitamin 2  time.

A detailed history would help in understanding your situation better. Kindly consult at your convenience.