A comprehensive review on the relationship between serum vitamin D levels and cutaneous warts, molluscum contagiosum, and recurrent herpes simplex

Viral skin diseases range from simple superficial exanthems to complex systemic diseases, affecting people of all ages. Careful assessment of infectious contacts and immunization status is of considerable importance along with a thorough physical examination. Recent research has linked a deficiency of vitamin D to an increased risk of autoimmune, infectious, and atopic disorders. Intralesional vitamin D3 may be an effective treatment option for warts. Vitamin D3 derivatives are effective for various skin conditions, including psoriasis, transient acantholytic dermatosis, actinic porokeratosis, and keratosis palmaris et plantaris. Vitamin D3 treatment has been shown to decrease chemokine synthesis and monocyte trafficking, as well as to downregulate toll-like receptors (TLRs) 2 and 4 of monocytes. This suggests an association between TLRs and vitamin-D-mediated innate immunity. The effect of vitamin D derivatives was speculated to be derived from its potential to regulate epidermal cell proliferation and differentiation and to modulate cytokine production. According to some studies gathered here, not only we can use different forms of vitamin D as therapy for viral skin disease, but also there is an important relationship between them. Therefore, we should consider the serum level of vitamin D for better management of these disorders. Also, keeping vitamin D levels within the normal range may be a preventative healthcare strategy.