chronic

Prurigo nodularis

Prurigo nodularis (PN) is a , skin disease characterized by intense pruritus and symmetrically distributed, firm or papules on the skin. The condition often leads to a vicious itch-scratch cycle in which scratching worsens the itch, and the itch provokes further scratching.

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Symptoms — what it feels like

·Firm, symmetrically distributed or papules with paroxysmal intense pruritus

Causes — why it happens

·Bidirectional dysregulation of the nervous system and system

How it's found

·Morphology of skin (texture, size), distribution pattern (extensor limbs, butterfly sign)

Prevention

·Avoid scratching and friction, intensive gentle moisturization, avoidance of triggers

Treatment

·Conventional medications, physical therapies, and biologic agents

Complications

·Anxiety, depression, sleep disturbances, secondary

More in Skin

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Plain-language summary adapted from Wikipedia. Not medical advice.