according to the Pfizer commercial, Paxlovid helps prevent the Covid virus from multiplying. if you have Covid, you need to take Paxlovid within 5 days of the first symptoms. I know someone who got Covid and took Paxlovid and it works. you take 3 big pills at once every 12 hours until all the pills are gone. Both President Biden and former President Trump got Covid and took Paxlovid.