Why Does Facial Eczema Differ From Body Eczema?

Abstract

Background: The pathophysiology of atopic dermatitis (AD) is multifactorial, influenced by genetics, skin barrier dysfunction, and environmental stressors. There is a lack of research comparing the etiologies and pathologic mechanisms accounting for differences in facial vs body eczema.

Objectives: To explore reasons why facial eczema may differ from body eczema.

Results: There are key differences in the environments of the face and body that may lead to AD exacerbation. These include differences in the skin microbiome, sebaceous glands concentration, and levels of natural moisturizing factor. The face is exposed to more environmental stress compared with the rest of the body. These stresses include aeroallergens, ultraviolet radiation, and cosmetic products. Management of facial eczema also differs from that of body eczema due to the avoidance of high potency topical steroids on the face. Topical steroids increase microbiome diversity, and lack of topical steroid use on the face can lead to decreased microbiome diversity and increased AD severity.

Conclusion: Facial and body eczema differ due to differences seen in anatomical structure and environmental exposures. These differences should be further researched and used in the management of facial vs body eczema and can also be used in the development of new AD treatments. J Drugs Dermatol. 2022;21(10): 1119-1123. doi:10.36849/JDD.6354.