Unknown: It's really unknown why this happens. More research is needed to study lichen planus and hopefully find a cure.
Answered 1/26/2014
4.5k views
Lichen planus: The exact cause of lichen planus is unknown. It is thought to be an allergic or immune reaction (nih report). May also be a reaction to medication. It may respond to treatment, or resolve itself.
Answered 1/26/2014
4.5k views
6 doctors weighed in across 2 answers
A doctor has provided 1 answer
A doctor has provided 1 answer
5 doctors weighed in across 2 answers
90,000 U.S. doctors in 147 specialties are here to answer your questions or offer you advice, prescriptions, and more.
Ask your question