found this out by accidents was just trying to clean dick kill any yeast that could be there I known vinegar is an old cure and baking soda kills things to also know it reacts together but was just expecting bobble feeling turned out to be painfully fun my dick was a bit most I put baking soda on it then dip it in a shot glass of apple cider vinegar was painful and de front I like pain made me hard fast look for it online searching baking soda vinegar cock Torture all I find enema fegard I would share maybe useful to doms and for self Torture, can't see it doing any permanent damage but am no doctor so at your own risk and maybe research it more