Vitiligo vulvar, best treatment is -
Coaltar
PUVA
Steroids
All
VITILIGO 

Acquired, an idiopathic disorder characterised by hypomelanosis of skin and hair together with the development of white macules with an absence of melanocytes on microscopy.

Types:-
1. Localised - segmental and focal.

Segmental-one/ more macules distributed in dermatomal or quasi-dermatomal pattern.
Focal-one/more macules distributed in a single area but not in a dermatomal pattern.

2. Generalised 

Vitiligo vulgaris- most common.Depigmented macules in symmetrical pattern.
Acromucosal
Universal

Treatment:

Vitiligo vulgarities-PUVA (psoralen+UVA).Topical or oral psoralen combined with UV A (320-400nm) irradiation is effective for treating vitiligo.