The World Health Organization ( WHO ) considers these substances as one of the options to treat COVID-19. < div style= '' float : right ; margin : 0 0 0.5em 1em ; width : 30em ; text-align : right ; font-size : 0.86em ; font-family : lucida grande , sans-serif ; line-height : normal ; '' >
There are substances recommended by the WHO that are useful to treat COVID-19 .