Home > Medical > Sore throat > Sore throat basics Updated 25 July 2019 WATCH: You may have heard about laryngitis but how does it work - and what happens if it doesn't go away after a few weeks? If your larynx is still inflamed after three weeks you may have chronic laryngitis. 0 This is an inflammation of the part of your throat that holds your vocal cords. It's called the "larynx." Laryngitis can make you sound hoarse, and your voice may be very weak.Image credit: iStock Related articles WATCH: What is strep throat? Strep throat is most common in kids, but adults can also pick up the infection. Can a sore throat really be deadly? Sore throats are very common and they’re usually nothing to worry about. But if it develops into a serious infection, ignoring it can cause terminal complications. What may be causing my persistent sore throat? Are you experiencing a scratchy throat – without a cold, flu or fever – that's simply not clearing up? Here’s what could be causing your chronic sore throat.