|     | • | Grover's disease:   vitamin A 50,000 Units TID X 2 weeks, then 50,000 units QD for up to 12 weeks | 
  | • | Brittle Nails:   biotin 2.5mg PO QD | 
  | • | Vitiligo:   folic acid (folic acid is water soluble - can’t take too much - body will flush out) 5mg BID; vit B12 1mg BID and sun | 
  | • | erythropoietic porphyria:   Beta Carotene 30 to 300mg/ day | 
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