Lichen planus is a rash that can affect different parts of your body, including the inside of your mouth. See a GP if you think you might have it.
Lichen planus on your skin usually gets better on its own in about 9 to 18 months.
Creams and ointments from a GP can help control the rash and ease itching.
If creams and ointments do not work or you have severe lichen planus, steroid tablets or treatment with a special kind of light (light therapy) can help.
Lichen planus in your mouth can last for several years. Mouthwashes and sprays from a GP can help ease symptoms like burning or sore gums.
You cannot catch lichen planus and it does not usually come back once it's cleared up.
For support and information, see UK Lichen Planus.