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Lichen Planus: Causes, Symptoms and Treatments

Lichen planus is a chronic inflammatory skin condition that can affect the skin, mouth, scalp, nails, and genital areas. It often appears as itchy, purple-coloured bumps or patches and can cause discomfort, irritation, and concern about long-term skin health. Many people searching for lichen planus treatment feel uncertain because symptoms vary and the condition can look different from person to person.

One of the most common questions patients ask is why lichen planus occurs and whether it is contagious or serious. Others want to understand how it is treated, how long it lasts, and whether it can come back.

This guide explains what lichen planus is, the known and suspected causes, treatment options, possible challenges, and how patients can manage symptoms effectively. It is written to help you understand the condition clearly and feel more confident before seeking medical advice.

This blog covers what it is, why it occurs, how it is treated, management strategies, and common patient questions.

Table of Contents:

What It Is Lichen Planus Explained

Lichen planus is an inflammatory condition of the skin and mucous membranes caused by an immune-mediated response. It is not infectious and cannot be passed from person to person.

Key attributes:

  • Affects skin, mouth, scalp, nails, or genitals
  • Often causes itchy, flat-topped purple or red bumps
  • Can be long-lasting or recurrent

Simple analogy:
Lichen planus is like the immune system mistakenly irritating the skin, leading to inflammation and visible changes.

Why It Matters Importance of Diagnosis and Treatment

Lichen planus matters because:

  • Persistent itching can affect sleep and daily comfort
  • Some forms, such as oral lichen planus, require monitoring
  • Scalp or nail involvement can cause long-term damage
  • Early treatment helps control symptoms and reduce flare-ups

Although lichen planus is not life-threatening in most cases, untreated symptoms can significantly affect quality of life.

Causes of Lichen Planus

The exact causes of lichen planus are not fully understood, but it is believed to be related to an abnormal immune response.

Possible triggers include:

  • Autoimmune reactions
  • Certain medications
  • Viral infections
  • Stress or emotional strain
  • Genetic susceptibility

In many patients, no single clear cause is identified.

How Lichen Planus Is Diagnosed

  1. Clinical Examination
    A dermatologist assesses the appearance and distribution.
  2. Medical History Review
    Medications, symptoms, and triggers are discussed.
  3. Skin Biopsy (if needed)
    A small sample may be taken to confirm diagnosis.

Accurate diagnosis is important because lichen planus can resemble other skin conditions.

Lichen Planus Treatment Options

Treatment focuses on controlling inflammation and relieving symptoms.

Common treatment options include:

  • Topical corticosteroids to reduce inflammation
  • Immune-modulating creams
  • Oral medications for widespread or severe cases
  • Antihistamines to help manage itching
  • Light-based therapies in selected cases

Treatment plans are tailored based on severity and affected areas.

Key Benefits of Early and Appropriate Treatment

  • Reduced itching and discomfort
  • Improved skin appearance over time
  • Lower risk of long-term skin changes
  • Better control of flare-ups
  • Improved quality of life

Common Problems

  • Symptoms may recur even after treatment
  • Healing can be slow
  • Scarring or pigmentation changes may occur
  • Stress can worsen flare-ups
  • Long-term management may be needed

Understanding these challenges helps set realistic expectations.

Types of Lichen Planus Compared

Type Area Affected Main Symptoms Special Considerations
Cutaneous Skin Itchy purple bumps Often resolves over time
Oral Mouth White patches, soreness Requires monitoring
Scalp Scalp Hair loss patches Early treatment important
Nail Nails Thinning or ridging May be permanent

How to Manage Lichen Planus Day-to-Day

Key management tips include:

  1. Avoid known triggers where possible
  2. Use gentle skin-care products
  3. Keep skin moisturised
  4. Manage stress levels
  5. Follow prescribed treatment consistently

Regular follow-up helps monitor progress.

Expert Tips & Mistakes to Avoid

Expert tips

  • Treat flare-ups early
  • Be consistent with topical treatments
  • Monitor mouth or scalp involvement carefully

Mistakes to avoid

  • Scratching affected areas
  • Stopping treatment too early
  • Self-diagnosing without medical review

 

Conclusion

Lichen planus is an inflammatory condition that affects the skin and other body areas due to immune system activity. While it is not contagious, symptoms can be persistent and uncomfortable. Treatment focuses on reducing inflammation, relieving itching, and managing flare-ups. Early diagnosis and consistent care improve symptom control and help prevent long-term complications. Understanding the causes of lichen planus and available treatment options allows patients to manage the condition more confidently and effectively.

If you’re looking for ways to achieve healthy, beautiful skin, contact us today to learn more about how we can help.

Restore your self-confidence today. Click Here to discover more about our services and pricing, or call Harley Street Healthcare London Dermatology Clinic to discuss your needs with one of our friendly team.

FAQs

Is lichen planus contagious?
No, lichen planus is not contagious.

Can lichen planus go away on its own?
Some cases resolve over time, but others may persist or recur.

What triggers lichen planus flare-ups?
Triggers vary and may include stress, medications, or immune changes.

Is lichen planus an autoimmune disease?
It is believed to involve an immune-mediated response.

Can lichen planus affect the mouth or scalp?
Yes, it can affect skin, mouth, scalp, nails, and genital areas.

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