My great great grandfather sold a liniment known as "IXL liniment, fit for man and beast" He claimed it to be 100% successful with all kinds of ailments and illnesses. I am not discounting the advertisements of either IXL OR ACV. One of the benefits of ACV that you failed to mention is its ability to break up black burns in pots and pans. Boil enough vinegar to cover burn mark and boil for half an hour. Keep track of contents so vinegar does not evaporate and allow to cool enough to handle. It takes a lot of hard rubbing but it will break up. Re boiling vinegar several times helps.