27. Soothe poison ivy rash Get rid of the itch! In poison ivy rashes, potassium in apple cider vinegar can help reduce swelling. Make a compress with cotton wool and apply ACV directly to the skin. 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