AdvertisementCoronavirus FAQ: Why are some folks hacking home COVID tests by swabbing their throat?January 12, 2022Sheila Mulrooney EldredfacebookEmailA COVID-19 home test in the U.S. comes with a swab to swirl in the nostrils. But some users say they're swabbing the throat too — even though that's not what the instructions say to do. "They may stab themselves," cautions Dr. Janet Woodcock, acting head of the Food and Drug Administration. (Angus Mordant/Bloomberg via Getty Images)