Sorry if this sounds gross but I had an issue with what I believe to be a toenail fungus. Very small spot but anyway I heard that using vinegar helped to get rid of it. It is working. I used white vinegar and just rubbed some on it everyday. Oh well!
Yes you can drink apple cider vinegar but I would add honey or sugar. I have made the beet pickle juice when I fix pickled eggs. Have to taste the juice to season to your taste. makes really great looking deviled eggs and great on a salad.