It is never safe or recommended to do any sort of mole removing by yourself, better to leave the job to the cosmetic surgery professionals. The reason why i say that is there have been various known cases where someone used apple cider vinegar to apply on their face or neck to remove mole. At first it worked and looked like the home remedy was perfect, and the mole disappeared leaving behind skin flakes which can be simply rubbed off the skin. But after a while the same spot where the mole was, turned into another dark black or blue-ish or pink spots which never goes away. Eventually the person had to visit the cosmetic surgery professionals to have the new dark spots removed. Apple Cider Vinegar is simply a form of acetic acid that actually burns your skin to remove whatever skin is in contact with. So, be careful and always get professional advice before applying apple cider vinegar on your face especially.