IL6 and COVID-19: Ibuprofen has been found to reduce IL-6 in human synovial fluid (Gallelli et al. 2013) and in sputum (Chmiel et al. 2015); therefore, it will be important to report the use of ibuprofen (amongst other NSAIDs) in clinical studies of COVID-19 in order to better understand what impact it may have on cytokine production.