Mama To Many (Tennessee, Usa) on 06/20/2015: My teenage son was using a hoe in the garden and hit his ankle quite hard. He kept working anyway but by evening the area that he had hit was swollen and was still hurting him.
At bedtime I took a couple of paper towels and poured raw apple cider vinegar onto them. (Not dripping wet, just saturated.) I placed this on and around the swollen area. I wrapped that with plastic wrap and covered the whole thing with a sock.
In the morning he removed the poultice when he woke up and the swelling and pain were almost completely gone! He worked most of the day helping a friend to shear sheep and didn't have any trouble or any more swelling.
~Mama to Many~