After surgery, you have to allow time for the tendon to heal. This means keeping your arm immobilized. You’ll probably wear a sling for 4 to 6 weeks after surgery, depending on the severity of the tear. During that time, your surgeon may allow you to remove the sling for bathing and dressing. Most people are comfortable performing light daily tasks (washing their face, eating, etc.) by 6 to 8 weeks.