whats best rehabilitation for left arm

I BROKE MY LEFT CLAVICAL, LEFT COLAR BONE IN TWO PLACES, AND SEPERATED A COUPLE OF RIBS APROX 6 WEAKS AGO.
THE BONES DO NOT HURT NOW, HOWEVER THE FRONT SHOULDER AND TOP CENTER TO OUTER LEFT SIDE OF BICEPT IS STILL IN CONSTANT PAIN.
I HAVE LIMITED MOBILITY AND NEED ADVICE ON REHABILITATION FOR STRENGTH AND MOBILITY