**Question:** Vitiligo vulvar, best treatment is -

A. Topical corticosteroids
B. PUVA therapy
C. PUVA combined with topical corticosteroids
D. Surgery (skin grafting)

**Core Concept:** Vitiligo vulgaris is a chronic, acquired disorder characterized by depigmentation of the skin due to autoimmune destruction of melanocytes. It typically presents as white patches on mucocutaneous junctions, specifically in the genital area (vulvar).

**Why the Correct Answer is Right:**

Correct Answer: PUVA combined with topical corticosteroids

PUVA stands for psoralen plus ultraviolet A radiation. This treatment combines a photosensitizing agent (psoralen) with UVA light, which enhances the penetration of UVA into the skin. PUVA therapy helps to suppress the autoimmune response against melanocytes, leading to repigmentation of the affected area. Topical corticosteroids are used to reduce inflammation and pruritus associated with the disease.

**Why Each Wrong Option is Incorrect:**

A. Topical corticosteroids only: While topical corticosteroids can reduce inflammation and pruritus, they have limited efficacy in treating vitiligo vulgaris due to the autoimmune nature of the disease.

B. PUVA therapy alone: UVA radiation can cause skin damage and increase the risk of skin cancer, making this treatment option less suitable than combining it with topical corticosteroids.

C. PUVA combined with topical corticosteroids: This option is similar to the correct answer but does not address the issue of skin damage caused by UVA radiation in PUVA therapy.

D. Surgery (skin grafting): Vitiligo vulgaris is an autoimmune disease affecting melanocytes, not a cosmetic issue. Skin grafting, while effective in some localized cases, is not a suitable first-line treatment for widespread depigmentation.

**Clinical Pearl:**

Vitiligo vulgaris is a complex autoimmune disorder affecting melanocytes. Combining PUVA therapy with topical corticosteroids addresses the need for repigmentation while minimizing the risks associated with UVA radiation. This approach ensures a balance between efficacy and safety in treating vitiligo vulgaris, making it the best choice among the given options.