Genetic studies only. You are asking about facial-scapular-humaral dystrophy. This is a very familial form of mild muscular dystrophy that involves the face and shoulders and upper arms and is progressive from adolescence on. There are no definite treatments except exercises and at times tendon-muscle transfers. Advances in the genetic evaluation seem exciting. There are trials of Prednisone such as in duchenne's.
See MDA website. The muscular dystrophy association is an excellent resource on all types of muscular dystrophy and the latest research: www.Mda.Org.