Lichen planus is a skin rash triggered by the immune system. It’s not currently known why this immune response occurs. There may be several contributing factors, and each case is different. Potential ...

Lichen planus is an inflammatory skin condition that causes a rash that is usually itchy. It consists of small, shiny, slightly raised, flat-topped bumps that can be pink or purple in color. Lichen ...

Lichen planus is an inflammatory condition that can affect your skin and mucous membranes. Researchers do not yet know the exact cause, but hepatitis C may be one possible risk factor. Lichen planus ...