Apple cider vinegar can be very instrumental in removing mucus from the body. By combining it with lime juice in a little water will help to break up hardened plaque and mucus inside the body that are otherwise hard to remove. A little apple cider vinegar once in a while is useful. However, we will not classify it as something good, just useful. Using this remedy to remove impurities from the body is a case of using evil to conquer evil.
Apple cider vinegar is unhealthy due to the process of which it is made, and the ingredients it is made from. It is made by adding yeast and bacteria, which are unhealthy, to apple juice to trigger the process of fermentation. In this process, the “sugar” in the apple is converted to alcohol first and then to vinegar.
A teaspoon of apple cider vinegar (in salads, etc.) once in a while is OK, but it is not something you should be consuming frequently. You can consider it to be more like a drain cleaner for the body, but just like how a drain cleaner will eventually burn through your pipes if you use it excessively, cider vinegar will do the same in your body. It will burn through your cell walls, veins, and arteries.