Help docs! i'm trying to find out what causes lichen planis and what can be done about it?

Uncertain cause: The link below will give you loads of additional info. It is not entirely clear what causes lp. There is a link to hepatitis c in some patients but not all. Treatment is directed at reducing the inflammation. Care by a dermatologist is necessary. Good luck. http://www.aad.org/dermatology-a-to-z/diseases-and-treatments/i---l/lichen-planus.