Stand with your legs hip width apart.
Hold a weight in the arm you'd like to exercise.
Bend your symptomatic elbow, bringing your hand to your shoulder.
Straighten your arm above your head.
Rotate your shoulder so that your fist faces forwards and your little finger is on the outside leading edge.
Steadily lower your arm back down to the side, keeping the arm straight and your shoulder relaxed.
You can also do this exercise with additional weight.