Lichen Simplex Chronicus
Lichen simplex chronicus is not a primary disease in its own right. It develops when one area of skin is scratched or rubbed excessively over a long period. The skin defends itself against this constant mechanical irritation through a process called lichenification: it becomes thick, rough and leathery, with exaggerated skin markings that resemble scales, and its color changes. The itchier it gets, the more the patient scratches, and the more they scratch, the thicker and itchier the skin becomes.
At Haute-Derma, we take a broad view of this condition. Beyond treating the thickened plaques themselves, we look for psychological triggers and underlying skin disease, helping patients feel comfortable in their daily lives again.
How Lichen Simplex Chronicus Is Diagnosed
Diagnosing lichen simplex chronicus takes care, because it must be distinguished from other papulosquamous conditions. At Haute-Derma, our assessment includes:
- Clinical examination and history: We identify scratching habits and sources of stress in the patient's life.
- Dermoscopy: We look for characteristic features such as dense collagen bundles and dotted vessels, which help separate it from psoriasis.
- Skin biopsy: Reserved for thickened plaques that look suspicious for malignancy or do not respond to standard treatment.
- Potassium hydroxide (KOH) preparation: Rules out an itchy fungal infection that could be driving secondary lichenification.
- Psychodermatology assessment: We explore how itch episodes relate to anxiety or sleep problems.
Modern Treatment Options at Haute-Derma
The main goals are to flatten the plaques and stop the scratching:
- Potent topical corticosteroids: Ointment formulations are used because they penetrate thickened skin better.
- Intralesional corticosteroid injection: Medication is delivered straight into the thickened skin for the best results in stubborn plaques.
- Occlusive therapy: Covering the affected area boosts absorption of the medication and creates a physical barrier against scratching.
- Topical calcineurin inhibitors (TCIs): A long-term alternative that avoids the skin thinning caused by prolonged steroid use.
- Neurological support: Mildly sedating antihistamines or anti-anxiety medication help patients sleep and break the cycle of nighttime itching.
