How Can I Get Relief From A Torn Rotator Cuff?

67 yr old female, fell and tore right rotator cuff in May, have had extensive physical therapy, gone to surgeon, inoperable to repair, only possibility is replacement of ball and socket . Currently receiving cortisone shots in shoulder that are helping but bicep swells and have a lot of pain, already on percocet for extensive arthritis thru out whole body but this is stabbing pain. Put lidocaine ointment and ace bandage to relieve some of pain but there is now bruising showing in the upper arm where the pain is. Yes I do regular house hold duties as I have recently retired but when the pain is sharp, I have to stop. Over the counter ibuprofen 200 mg but need to know is there something else I can take. Thank you.