Lichen simplex chronicus (or lichen simplex) is a skin disease characterized by the appearance of circular spots that change the color of the skin and are accompanied by itching. This is a conditionally infectious pathology that most often occurs in people with a weakened immune system and can manifest itself in various forms. The disease is associated with a metabolic disorder in the skin and can often be chronic, which makes it a significant problem for both the patient and the doctor. Lichen simplex chronicus is not contagious, but its symptoms can cause psychological discomfort.
History of the disease and interesting historical facts
Ringworm in various forms has been known since ancient times. In the medical texts of Ancient Egypt, there are references to skin diseases similar to the concept of ringworm that we are accustomed to. In the Middle Ages, with the development of theories about the nature of diseases, ringworm stood at the center of many examples of misconceptions, considered a "curse". Many madnesses attributed to the negative effects of ringworm actually occurred due to a lack of knowledge about the disease. Official medicine began to study ringworm in more detail only in the 19th century, when modern methods of diagnosis and treatment began to be used.
Epidemiology
According to statistics, the prevalence of lichen simplex fluctuates between 3% and 10% in general populations, depending on the region and climatic conditions. Studies show that chronic lichen is most often observed in populations with a weakened immune response. For example, in Africa and some Asian countries, the incidence reaches 12%, while in the northern regions of Europe this figure fluctuates between 3-8%. Epidemiological studies show that the disease occurs much more often among adults and the elderly than in children.
Genetic predisposition to this disease
Genetic studies indicate possible mutations in certain genes, such as IL-1, IL-6, and TNF-alpha, that may play a role in the pathogenesis of simple chronic lichen. Several genetic markers associated with susceptibility to the disease, including variations in the HLA system, may indicate the likelihood of developing chronic lichen in certain populations. However, the additional fact is that the interaction of genetic predisposition with environmental and immunological factors also has a pronounced effect on the manifestation of the disease.
Risk factors for the development of this disease
Lichen simplex chronicus can develop under the influence of various factors. These include:
- Physical factors: hypothermia, mechanical damage to the skin, frequent contact with water.
- Chemical factors: use of irritating cosmetics and hygiene products, chemicals.
- Immune factors: diseases that weaken the immune response, such as diabetes or HIV.
- Stress: psycho-emotional overload can significantly worsen the manifestations of the disease.
- Heredity: Family history of the disease can be an indicator of the risk of developing it.
Diagnosis of this disease
The main symptoms of lichen simplex include:
- Circular areas of loss of pigmentation on the skin that may be scaly.
- Itching that can vary in severity.
- The emergence of new areas of exacerbation against the background of the main process.
The following approaches are used for diagnostics:
- Laboratory tests (tests for the presence of infectious agents).
- Radiological examinations (in some cases to exclude systemic diseases).
- Clinical assessment of skin condition by a specialist.
- Differential diagnosis, which is necessary to exclude other dermatological diseases, such as psoriasis, eczema, etc.
Treatment
Treatment for lichen simplex chronicus is aimed at relieving symptoms and restoring the skin's condition. It may include:
- General treatment: recommendations for improving lifestyle, reducing stress, maintaining hygiene standards.
- Pharmacological treatment: use of antihistamines, corticosteroids, sometimes immunosuppressants for severe cases.
- Surgical treatment: may be considered in cases where other methods fail.
- Other treatments include physical therapy, moisturizers, and skin medications.
List of medications used to treat this disease
The main groups and drugs that can be used to treat lichen simplex chronicus:
- Creams and ointments with corticosteroids (such as prednisolone, betamethasone).
- Antihistamines (such as diphenhydramine, fexofenadine).
- Immunosuppressants (methotrexate, azathioprine).
- Preparations for topical use containing salicylic acid and ichthyol.
Disease monitoring
Patient management includes regular check-ups, evaluation of treatment effectiveness, and detection of possible complications. The prognosis with adequate treatment is generally positive, but if symptoms are ignored, eczema and secondary infections may develop. Major complications may include skin scarring and psychological problems such as low self-esteem.
Age-related features of the disease
According to clinical observations, the simple chronic lichen form most often manifests itself in adults and the elderly. In children, the disease may be less severe, but in adolescence, exacerbations are recorded in 10-20% cases. About 70% cases in adults are observed after 40 years.
Questions and Answers
- What are the main causes of lichen simplex chronicus? The main causes are a weakened immune system, stress, physical and chemical influences on the skin.
- Is it possible to get lichen simplex chronicus? No, this disease is not infectious and is not transmitted from person to person.
- How long can treatment for lichen last? The duration of treatment depends on the severity and course of the disease; the average course is from several weeks to several months.
- What are the possible consequences after treatment? In most cases of the disease, control and observation are sufficient, but there are risks of relapse and development of allergic reactions.
- Is it possible to use folk remedies to treat lichen? Folk remedies can complement drug treatment, but before using them it is better to consult a doctor.
Dr. Oleg Korzhikov recommends following simple but important rules for more effective control of the disease: “First, maintain personal hygiene and try to avoid contact with irritants. Second, monitor your emotional state and avoid stress. Third, do not forget about regular check-ups with a dermatologist to monitor the manifestations of the disease. And finally, if you notice a deterioration in the condition of your skin or new lesions, consult a doctor immediately. Remember that it is better to prevent a relapse than to treat its consequences.”
