10 Things You Didn’t Know About Lichen Planus

1. Cause

The rash, lichen planus has no known cause but can show up following the consumption of some medicines, such as thiazide diuretics, antimalarial pills, and tranquilizing drugs called phenothiazines. There are other schools of thought, particularly among dermatologists, which believe the condition is an autoimmune reaction. This outcome can happen when too many antibodies are produced by the immune system in an attempt to fight infection, resulting in inflammation of the skin.