How To Treat Chronic Costochondritis?

Hello I suffer from Chronic costochondritis and I m comming up for 16 in may.. I was on the strongest ibuprofen allowed by law and it done so much damage I also take omeprazol and have recently been moved off the anti inflamitries as they are doing my body damage and I ve become immune to them.. I m going to get an electroscan (12 point ecg) and an echoscan because during the latest diagnosis the doctors found a clicking and murmering noise from my heard which may be MVP, I really need some form of pain relief and I know the story with costo but there s talk of cortisone injections to ease pain on some sites including wiki bit each time I ask for a solution I get no reply the doctor acts like I never asked the question ..what can I do I have tried everything and there has been no progress, they seem more concerned about my heart than my costo but I can t go on with such pain this is barbaric and the only thing keeping me from suicide is the girl putting up with me through all this, what are my rights, options and ways to go about this because NHS treat me horribly, what can be done ??