anymore than 800mg of motrin at anyone time is no longer theraputic, it will eat your stomach usually the script for an adult is 800mg every 8 hrs/three time a day. Then again I was taking 2400mg ever 8.. So I probably have a ulcer somewhere.. 2400mg a day. Rest, Ice, Elevation.. if you have a sling or shoulder immoblizer use it.. Being that this injury is over a month be sure to consult your physician if your home treatment is not working...