Treatment of pustular psoriasis is :
**Core Concept**
Pustular psoriasis is a rare and severe form of psoriasis characterized by widespread pustules on the skin. The primary goal of treatment is to control the symptoms and prevent complications.
**Why the Correct Answer is Right**
Treatment of pustular psoriasis involves a combination of topical and systemic therapies. The correct answer involves the use of **methotrexate**, a folate antagonist that inhibits DNA synthesis and cell proliferation. **Methotrexate** is effective in reducing inflammation and slowing down the growth of skin cells, which helps to control the symptoms of pustular psoriasis. Additionally, **methotrexate** is often used to manage psoriatic arthritis, a common comorbidity in patients with pustular psoriasis.
**Why Each Wrong Option is Incorrect**
**Option A:** This option is incorrect because **cyclosporine** is an immunosuppressive agent that can be used to treat moderate to severe psoriasis, but it is not the first-line treatment for pustular psoriasis due to its potential side effects and limited efficacy in this specific condition.
**Option B:** This option is incorrect because **acitretin** is a retinoid derivative that is used to treat severe psoriasis, but it is not the preferred treatment for pustular psoriasis due to its potential teratogenic effects and limited efficacy in this specific condition.
**Option C:** This option is incorrect because **hydroxychloroquine** is an antimalarial agent that is used to treat various autoimmune diseases, but it is not typically used to treat pustular psoriasis due to its limited efficacy and potential side effects.
**Clinical Pearl / High-Yield Fact**
It's essential to note that pustular psoriasis can be a medical emergency, and prompt treatment is necessary to prevent complications such as hyperthermia and multi-organ failure. Early recognition and treatment of pustular psoriasis can significantly improve patient outcomes.
**Correct Answer: A. Methotrexate. Methotrexate is effective in reducing inflammation and slowing down the growth of skin cells, making it a preferred treatment option for pustular psoriasis.**