COVID-19 cases do not make news headlines much anymore but many people who experienced it can have persistent symptoms long after the infection. A new study reveals a prescription drug used for another chronic illness shows promising results in reducing COVID’s aftereffects. Metformin is what doctors often prescribe for managing Type 2 diabetes. The study said taking Metformin within a week of the onset of COVID-19 symptoms showed a 53% lower risk of symptoms lasting longer-term.