<s>[INST] I have been having bad pain in my Sternum /breast bone for some time. I have also had intercostal strain which has been going on for nearly 9 weeks can you tell me, are they connected, I seem to make slow progress then do something to increase the pain again, my Brest bone muscles are very tight and very painful I am taking co dydramol diazepam and naproxen but don t seem to help with pain. I am now very worried and concerned about the pain in my sternum is ice or heat the best you use ? [/INST] Hi Hope this message finds you in good health.I have gone through your complaints and understand your concern.u seem t have strained some muscles,nerves in that area,analgesics,hot fomentation,rest, a rib belt might help.Nothing to worry about.     I hope your question has been answered.If you have any follow-up queries,feel free to consult me anytime.Thanks,Take care,God bless. </s>