Unfortunately, once the nerve becomes unstable it is challenging to resume high velocity throwing without surgery. Bracing of the elbow with the elbow position towards full extension can manage acute symptoms and in some cases can allow a player to rehab and get back to throwing.
More commonly the snapping of the ulnar nerve is resolved with a surgical procedure called ulnar nerve transposition. In this procedure, the ulnar nerve is positioned in front of the arm and stabilized using either subcutaneous tissues or a dense tissue adjacent to the nerve called the intermuscular septum.
Recovery time for this surgery depends on the degree of injury to the ulnar nerve. Throwing can be resumed as early as six weeks in many cases.