Is Lichen Simplex Similar to Psoriasis?
Psoriasis is the most common autoimmune disease in the United States, according to the Nation Psoriasis Foundation (NPF). The chronic, inflammatory, non-contagious skin disorder affects about 7.5 million Americans. In contrast, lichen simplex, also called neurodermatitis, is a hard-to-break cycle of scratching and itching.
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Skin
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Lichen simplex makes the skin look thick and leathery, according to the Mayo Clinic, while psoriasis-affected skin is typically raised, red, and covered with silvery-white scales. Both conditions cause itching.
Treatment
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Lichen simplex responds to over-the-counter ointments and may improve once any anxiety associated with the problem is relieved. Psoriasis is more complicated to treat. Physicians typically try a variety of remedies, including ointments, light therapy, and systemic and biologic drugs, to treat psoriasis.
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Cause
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The Mayo Clinic says the exact cause of lichen simplex is unknown---likewise for psoriasis. Clinic staff say that in some cases lichen simplex is associated with other skin disorders, including psoriasis.
Stress
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Lichen simplex often appears as a single patch and can affect the genitals. It may come and go according to stress or anxiety levels. The same applies to psoriasis.
Ages
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Neurodermatitis is most common for people aged 30 to 50 and affects more women than men. Psoriasis affects men and women equally and commonly appears at a younger age.
Cures
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Psoriasis has no complete cure today. Lichen simplex skin can return to normal once the scratching stops, even though it may be months later, according to the Mayo Clinic.
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