Chaulmoogra is an herb. People use the seed to make medicine. Despite serious safety concerns, people put chaulmoogra powder, oil, emulsion, or ointment on the skin to treat skin problems including psoriasis and eczema. Chaulmoogra is given intravenously (by IV) for leprosy. This is not surprising since the first drugs used for treating leprosy used chemicals found in chaulmoogra seeds.