Lichen planus is an uncommon skin complaint.
It is thought to be due to an abnormal immune reaction provoked by a viral infection or a drug. Inflammatory cells seem to mistake the skin cells as foreign and attack them.
Lichen planus may cause a small number of skin lesions or less often affect a wide area of the skin and mucous membranes.
In 85% of cases it clears from skin surfaces within 18 months but it may persist longer especially when affecting the mouth or genitals.
Treatment for this deases Plz contact ur nearest Skin special doctor