Key points
- Itchy, flat-topped bumps or mouth patches
- Linked to the immune system
- Not contagious
- Mouth patches need regular checks
What it is
Lichen planus is an inflammatory condition of the skin and the moist linings of the body, such as the inside of the mouth. It is thought to be related to the immune system.
It most often affects adults in middle age. Skin lichen planus often settles over months, while mouth lichen planus can last longer and needs regular checks.
Common signs
- Itchy, flat-topped, shiny bumps — purple, brown or dark on brown skin
- Common sites: wrists, ankles, lower back
- White lacy lines or sore patches inside the cheeks
- Burning in the mouth with spicy or hot food
- Ridged or thinning nails; patchy hair loss in some people
Things that may be linked
- Certain medicines (for blood pressure, arthritis or malaria)
- Hepatitis C infection in some people
- Dental fillings or materials in some cases
- Stress
- Injury to the skin, where new patches can appear
Everyday care that helps
- Use mild soap and lukewarm water; moisturise the skin
- Try not to scratch — keep nails short
- For mouth symptoms, avoid very spicy, salty, acidic or hot foods
- Keep good mouth hygiene with a soft toothbrush
- Avoid tobacco and limit alcohol
- Have regular dental check-ups if your mouth is affected
When to see a doctor promptly
- Mouth sores that do not heal, bleed or change in appearance
- Painful genital sores
- Rapid spread of the rash
- Hair or nail loss
How we approach it at Gursagar
We take a full history, including medicines, dental work, stress and other health conditions, and examine the skin, mouth, nails and scalp.
Dr. Shah prescribes classical homoeopathic medicine chosen for you individually, with regular follow-ups. For mouth lichen planus, we also advise regular dental review.
Common questions
Is lichen planus contagious?
No.
Do I need a biopsy?
Sometimes a doctor will suggest a small skin or mouth biopsy to confirm the diagnosis.
Can I consult online?
Yes, with clear photos of the skin and inside of the mouth.
Would you like Dr. Shah to look at your case?
Consult in person at Rajpura or Chandigarh, or online from anywhere in India and abroad.
This article is for general health education and is not a substitute for a medical consultation. Every person is assessed individually, and results differ from person to person. Please do not stop or change any medicine prescribed to you without speaking to your doctor. Dr. Randeep Singh Shah, D.H.M.S., AFHom (UK) · Reg. No. 2423-A.

