Antimicrobial drugs, including antibiotics, marked a turning point in modern medicine. However, this great advance is threatened because, every year, more microorganisms are found. learn To defend themselves against treatments, bacteria become stronger and more resistant, rendering medications ineffective. Eneritz Velasco, attending physician in the infectious diseases department at Sant Joan de Déu Hospital and coordinator of the hospital's antimicrobial stewardship program, points out that among the uses that most compromise their effectiveness is "using them when they are not necessary," since antibiotics are effective against viral infections such as the flu, the common cold, or COVID-19. Velasco emphasizes that "they are also not analgesics," so they do not relieve pain "nor do they treat coughs or reduce fever."