History of hypersensitivity reaction to glucocorticoids; Recent hospitalization and treatment history due to COVID-19; Receive antiviral drugs before including into this study, such as: Hydroxychloroquine, Kaletra, Ribavirin, Oseltamivir; Receiving Methylprednisolone pulse before including into this study; Uncontrolled severe chronic illnesses, including heart failure, kidney failure, liver failure, active cancer (history of chemotherapy within recent month), diabetes; Receiving immunosuppressing /immunomodulating agents, such as systemic glucocorticoids. Pregnancy; Lactation.

History of hypersensitivity reaction to glucocorticoids; Recent hospitalization and treatment history due to COVID-19; Receive antiviral drugs before including into this study, such as: Hydroxychloroquine, Kaletra, Ribavirin, Oseltamivir; Receiving Methylprednisolone pulse before including into this study; Uncontrolled severe chronic illnesses, including heart failure, kidney failure, liver failure, active cancer (history of chemotherapy within recent month), diabetes; Receiving immunosuppressing /immunomodulating agents, such as systemic glucocorticoids. Pregnancy; Lactation.