Cohort study: Among children with Multisystem Inflammatory Syndrome (MIS-C) associated with Covid-19, there was no evidence that recovery differed after primary treatment with intravenous immune globulin (IVIG) alone, IVIG plus glucocorticoids, or glucocorticoids alone.

Treatment of Multisystem Inflammatory Syndrome in Children – New England Journal of Medicine

Editorial: Immunotherapy for MIS-C — IVIG, Glucocorticoids, and Biologics

Commentaries: Steroids may be effective treatment for COVID-19 complications in children – Imperial College London AND Expert reaction to study looking at treatments for COVID-19 complications in children – Science Media Centre