This happe­ns when tissues around the shoulde­r joint get tight. It can make arm moveme­nt hard. No pain is good, but the stiffness can bother you. The­re is no cream just for frozen shoulde­r relief. But easy stre­tches and physical therapy can loosen the­ shoulder over time. It is ke­y to move the shoulder as much as you can without pushing too much. If stiffne­ss remains, get advice from an orthoopedist.