Although an acute, usually self-resolving disease, COVID-19 can also be deadly . Thus far, no approved specific treatments for this novel highly contagious disease are available, which posed great challenges on clinicians worldwide . Here we present the case of a relatively young COVID-19 patient who recovered well, despite delayed diagnosis and initiation of aggressive treatment . From the case, we speculated that: (a) Delayed diagnosis may miss the optimal antiviral treatment period for severe cases . (b) Monitoring of inflammatory markers and blood gas analysis in early stage may assist in identifying high-risk patients . (c) Glucocorticoids therapy in early stage may be harmful to the patient . (d) Once progressed to ARDS, mechanical ventilatory support should be considered as soon as possible in case of refractory hypoxemia . (e) ECMO, a scarce medical resource, should not be abused to treat COVID-19 patients with very low expected survival rates, especially during the period when medical resources are run out . (f) convalescent plasma therapy should be initiated in earlier stage of disease.