The frequent association between coronavirus disease 2019 (COVID-19) and olfactory dysfunction is creating an unprecedented demand for a treatment of the olfactory loss. Systemic corticosteroids have been considered as a therapeutic option. However, based on current literature, we call for caution using these treatments in early COVID-19–related olfactory dysfunction because: (1) evidence supporting their usefulness is weak; (2) the rate of spontaneous recovery of COVID-19–related olfactory dysfunction is high; and (3) corticosteroids have well-known potential adverse effects. We encourage randomized placebo-controlled trials investigating the efficacy of systemic steroids in this indication and strongly emphasize to initially consider smell training, which is supported by a robust evidence base and has no known side effects.
CITATION STYLE
Huart, C., Philpott, C. M., Altundag, A., Fjaeldstad, A. W., Frasnelli, J., Gane, S., … Hummel, T. (2021). Systemic corticosteroids in coronavirus disease 2019 (COVID-19)-related smell dysfunction: an international view. International Forum of Allergy and Rhinology, 11(7), 1041–1046. https://doi.org/10.1002/alr.22788
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