article_snippet.sent: The nerve endings in the skin interpret this as itching or burning pain, and this can also cause the tissues to swell up.
article_snippet.sent: her skin is more sensitive to longer ultraviolet wavelengths (UVA) and to visible light.
article_snippet.sent: from sunlight and this sets off a chemical reaction that can slightly .
article_snippet.sent: damage surrounding tissues.
article_snippet.sent: The . nerve endings in the skin interpret this as itching or burning pain, .
article_snippet.sent: and if the blood vessels are affected, the blood vessels can leak fluid, causing . swelling.
article_snippet.sent: The condition is hereditary and symptoms include developing tingling, itching and burning when exposed to sunlight.
article_snippet.sent: an experimental drug called Scenesse acts as an anti-oxidant and activates melanin in skin, providing a barrier between the skin and wavelengths of light that trigger the burning and itching. '
highlights_snippet.sent: Has to cover she completely as  small amounts of light leave she in pain .