Hi John,Sorry to hear about your injury,anti inflams are great but need a bit of help,if you are going to keep working can I suggest the following.get a polystyrene or cut fill with water and freeze,the evening before work tear away the top inch of the polystyrene and massage the shoulder using the ice cup for about ten mins keep the cup moving and you will feel relief,then rub in somthing like bruphen gel.try to rest shoulder as much as poss before work and the. Take a couple of anti inflam tablets be fore you start work,the ice cup treatment can be used as often as required but remember keep it moving and don't let skin become to red