Lichen planus (1411)

Key points below

What is lichen planus (LP)? 

What causes it? 

There is no specific cause of LP. It may be related to the immune system or an allergic reaction. Sometimes, it may be set off by certain medicines. It is important to report any medicines being taken. 

How is it diagnosed? 

A doctor, called a dermatologist, looks at the skin. Sometimes a biopsy may need to be done. A biopsy is when a small sample of the tissue is taken and looked at under a microscope. 

How is it treated? 


Call your child’s doctor, nurse, or clinic if you have any questions or concerns or if your child has special health care needs that were not covered by this information.