Epsom salt foot baths really work for sore throats. Soak your feet in a tub of water with about a cup of epsom salts, hot as you can stand for about 20 mins. Then dry your feet and put on two pairs of socks, woollen socks if you have them over a pair of thin cotton socks and go to bed. Each time I've done this my sore throat is gone by morning. Persistent sore throats can return though, so it's good to do the cayenne pepper gargle/ACV cayenne tea during the day if it comes back, and the epsom salt footbath at night before bed.