9. Cold Sore Remedy
Cold sores are painful, unsightly blisters that always seem to crop up at the worst possible time. As soon as you begin to feel the tingle that indicates a cold sore is about to appear, start applying vinegar directly to the area. It can also help to dry out the blisters once they have formed.
Those suffering from genital herpes can prepare a mixture of one tablespoon vinegar and one cup of water, and dab it onto the blisters using a clean cotton bud.