Rest is recommended for the early recovery phase, lasting 1 to 5 days depending on the severity of the injury. Immobilization is not usually necessary, and can be potentially harmful. Immobilization in a splint or cast should be carefully supervised by your doctor, as this can lead to stiffness of the muscle.
Ice application helps reduce swelling, bleeding, and pain. Ice application should begin as soon as possible after sustaining a muscle pull. Ice applications can be done frequently, but should not be done for more than 15 minutes at a time.