new question about whether St. John's wort might cause nerve toxicity

St. John's wort may cause more than photosensitivity...there's a new question about whether it might cause nerve toxicity.

There are reports of stinging pain and redness in areas exposed to the sun...face, hands, arms, and legs.

Researchers suspect this might be due to photoactive compounds in the herb that can damage the myelin layer that surrounds nerves.

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