Lichen planus is an inflammatory skin condition that can also affect mucous membranes, hair, and nails. It appears as flat, purplish, itchy lesions and can be acute or chronic. The exact cause is unknown, but it is believed to involve an autoimmune response where the body’s immune system attacks its own skin cells.
It appears as flat, purplish, itchy lesions and can be acute or chronic. The exact cause is unknown, but it is believed to involve an autoimmune response where the body’s immune system attacks its own skin cells.