The Frederick Wigley Lab is interested in the signs, symptoms and causes of scleroderma. We are testing new treatments for RaynaudÕs phenomenon and scleroderma. Understanding the treatment approach to Raynaud's phenomenon and associated ischemia and how to prevent digital ulcers is important for clinicians caring for these patients. Work in our lab has provided guidance in the management of Raynaud's phenomenon and digital ischemic ulcers, including options for the practical pharmacologic and nonpharmacologic interventions.