Question
A 17-year-old woman has skin photosensitivity since childhood but has gotten worse recently. Her skin appears fine indoors, but within a short period of sun exposure, she develops burning, redness, and itching. A diagnosis of erythropoietic protoporphyria is made by a dermatologist. Which of the following treatments is most likely to be helpful?
| A. |
phenobarbital |
| B. |
corticosteroids |
| C. |
high carbohydrate diet |
| D. |
beta-carotene |
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