Vitamin D plays a role in the process of melanogenesis, namely increasing L-Dopa cells, inducing differentiation of immature melanocytes, and increasing melanocyte activity. The use of vitamin D in dermatology is in the treatment of vitiligo, psoriasis vulgaris, atopic dermatitis, verruca vulgaris, and alopecia. Vitiligo is an autoimmune disease of the skin in the form of depigmentation due to the destruction of melanocytes by T cells. The clinical manifestations of vitiligo are white macular lesions and no scale, asymptomatic, and symmetrical. Vitiligo can affect the patient's quality of life, so accurate therapy is needed. Standard therapy in vitiligo needs further research to find accurate therapy with minimal side effects. Topical vitamin D is a vitiligo therapy with minimal side effects. Several types of topical vitamin D with therapeutic effects in the field of dermatology are calcipotriol, calcitriol, tacalcitol, maxacalcitol, and hexafluoro-1,25 dihydroxyvitamin D3 with various dosages and preparations. The role of vitamin D in melanogenesis and immunomodulators as monotherapy or in combination with topical corticosteroids has been shown to be effective in the treatment of vitiligo. This literature review was on the role of topical vitamin D in the treatment of vitiligo.

Background: Pemphigus foliaceus (PF) includes lesions on the skin, generally without involving the mucosa. Wounds in PF arise on the outer layer of the superficial skin, but if left untreated, the wound will not heal and will multiply. Platelet-rich plasma (PRP) containing a variety of different growth factors can be used in wound care. This study was at a time to describe autologous PRP therapy in the treatment of excoriated erosional wounds in patients with pemphigus foliaceus. Case presentation: A woman, 35 years old, married, a housewife living in suburban, comes to the emergency department with complaints of blisters accompanied by pain in the face, body, and back which has been increasing since 1 month ago. Examination of the skin showed palpebral blisters on the eyelids of the left and right eyes. In the anterior and posterior trunk regions, proximal 1/3rd and suprapubic extremities, there are hyperpigmented erythematous macules, multiple, nummular-plaque, discrete, partially confluent, with white to brownish scales, single layer and exfoliative. In the posterior trunk region, Nikolsky's sign was positive. Laboratory evaluation showed an increase in leukocytes and neutrophils. ANA examination showed negative results and anti-ds-DNA 54.91. Management of pemphigus in the form of topical and systemic treatment. Topical management in the form of an open compress with 0.9% NaCl solution, Intrasite gel®, and closed Cutimed sorbact® for erosion and excoriation. Topical PRP was administered on the 7th day of treatment. On the 14th day after treatment with topical PRP, the patient is allowed to go home with the repair of lesions throughout the region. Conclusion: PRP therapy in cases of pemphigus foliaceus is very useful in improving the clinical condition of the patient.