Hello! I saw my neighbor yesterday and he had this very strange dark part on his hand, like some thickening of the skin. It was not pleasant to see at all. He told me that it is a lichen simplex. I didn’t want to talk about it anymore, so I still don’t know what it is, and how can a person get it? Is there anybody who can explain this to me? THX
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Lichen Simplex Chronicus is a skin eruption created by habitually scratching a certain area over a long period of time. This scratching causes characteristic changes such as thickening and darkening of the skin,( just what you saw ) and an accentuation of normal skin lines. This Lichen Simplex Chronicus is seen in people with eczema but unlike eczema it affects just one area of the body. The nerve endings in this area are irritable and trigger an itch-scratch-itch cycle. The more the eruption is scratched or rubbed, the more it itches, continuing the cycle. Treatment is necessary.
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