The South African Institute of Dermatology, Bloemfontein, South Africa; and, Department of Dermatology, Faculty of Health Science, University of the Free State, Bloemfontein.
S Afr Fam Pract (2004). 2023 Jan 11;65(1):e1-e4. doi: 10.4102/safp.v65i1.5595.
The stratum corneum is the outermost layer of the epidermis. It acts as an interface with the external environment and functions as a barrier that prevents microorganisms and allergens from penetrating the skin, while preventing bodily fluids, electrolytes and proteins from being lost in a process aimed at maintaining homeostasis. With the novel coronavirus disease 2019 (COVID-19) outbreak, there has been an increase in hygiene practice, particularly hand washing and the use of hand sanitisers. These practices have undoubtedly assisted a great deal in combatting the rate of transmission and contributed immensely to saving lives. However, repeated hand washing and the use of sanitisers have both been linked with marked skin dryness and contact dermatitis. This especially holds true when the above-mentioned practices are carried out in the absence of intermittent hand moisturiser usage.
角质层是表皮的最外层。它作为与外部环境的界面，起到屏障的作用，防止微生物和过敏原穿透皮肤，同时防止体液、电解质和蛋白质在维持体内平衡的过程中流失。随着 2019 年新型冠状病毒病（COVID-19）的爆发，人们更加注重卫生习惯，特别是洗手和使用手部消毒剂。这些做法无疑在很大程度上有助于控制传播速度，对拯救生命起到了巨大的作用。然而，反复洗手和使用消毒剂都与明显的皮肤干燥和接触性皮炎有关。如果上述做法没有间歇性使用手部保湿剂，这种情况尤其如此。
