17. Treat a cold Acidic environments are ideal for bacteria and germs. Once a day, add one tablespoon of apple cider vinegar to your water to make your pH more alkaline. In addition to killing germs, it should soothe sore throats and colds. Post navigation The Most Expensive Television Shows Of All Time, Ranked 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31