Pustular psoriasis is a rare form of psoriasis, a chronic autoimmune condition characterized by patches of red, inflamed skin topped with silvery scales. In pustular psoriasis, these patches are also accompanied by pus-filled blisters, called pustules. These pustules can be painful and can appear suddenly, often affecting specific areas of the body such as the hands and feet. The skin around the pustules may be red and tender.
There are several types of pustular psoriasis, including:
- Von Zumbusch psoriasis: This is a severe and rare form of pustular psoriasis characterized by widespread areas of reddened skin with pustules. It can also cause fever, chills, severe itching, dehydration, rapid pulse, and fatigue.
- Palmoplantar pustulosis: This type of pustular psoriasis affects the palms of the hands and soles of the feet. It can cause painful, pus-filled bumps and may lead to cracking, scaling, and pain.
- Acrodermatitis continua of Hallopeau: This is a rare form of pustular psoriasis that affects the tips of the fingers and toes. It can cause pustules, skin peeling, and nail changes.
- Annular pustular psoriasis: This type forms annular (ring-shaped) lesions with pustules around the edges.
The exact cause of pustular psoriasis is unknown, but it is believed to involve an abnormal immune response that triggers inflammation and the rapid turnover of skin cells. Certain factors, such as stress, infections, medications, and hormonal changes, may exacerbate symptoms.
Treatment for pustular psoriasis often involves a combination of topical treatments, such as corticosteroids and calcipotriene, as well as systemic medications like retinoids, methotrexate, cyclosporine, or biologic agents. It’s essential for individuals with pustular psoriasis to work closely with a dermatologist to develop a personalized treatment plan that effectively manages symptoms and reduces the risk of complications.