My right breast arm pain won’t go away after muscle relaxers

I have a shooting pain from my right breast to my arm I got prescribed muscle relaxers from my ps but the affect of the muscle relaxers only last no more than 20 mins I’ve also taken Tylenol, ibuprofen and those don’t seem to work I’ve even tried icing/ heating pad nothing seems to be taking this pain away do I ask my dr for a higher dose?