I used apple cider vinegar (about a tablespoon) and about a tablespoon of water mixed and used a cotton ball to apply to my face. It started to burn and my face started to turn bright red. The red has gone away a good bit, if not completely. My face itches a bit because it got dried out a good bit, and my face feels a bit tight. Is it possible that apple cider vinegar could cause one side of my face to be thinner than the other side, or is it just my anxiety?