Hello. My 25 yo son has lost his eyebrows, about 1/3 of the hair on his head and several patches all over his body. His dermatologist put him on steroids for 2 weeks and rogaine. Told him he would have to see another doctor for anything else. All his blood work looked normal. He is otherwise very healthy. Should I take him to an endocrinologist, another dermatologist, or a rheumatologist? I read good things about taking hydoxychloroquine.