|No one wants to look at pictures of warts - so here's an image of ACV|
A fan requested this one as her daughter has a wart and she wanted to know if the common home remedy of Apple Cider Vinegar would work.
This proved to be harder to research that I originally thought it would. There currently isn't any published research on this (note to researchers: Get on it!) and the results I found online were mixed. Interestingly enough though, so were the professional treatments, with many people saying after several treatments either with lasers, freezing, or acids, that their warts remained.
The thing about warts that makes them so hard to treat is that they are caused by HPV--yes the same thing that causes genital warts. However there are over 100 different strains of HPV, and being a virus it's not like antibiotics will work on it. On top of that, once you have that strain of HPV, much like the herpes virus, it remains with you forever. And much like herpes, it has a high sexual stigma, though not all strains are transmitted sexually.
So the warts might fade or go away, only to return later. You can get them cut out, but that is extremely painful and leaves scarring.
ACV aside, the list of other home remedies is long, ranging from duct tape, to the really weird ones like rubbing an onion/potato on it, and burying said veg in the garden at midnight over a full moon (I wish I was joking). However things like duct tape have actually been tested, and research is still out on that. There's a lot of conflicting studies on it, though it seems to work only slightly for children, and not at all for adults. The other thing to remember with warts, much like cold sores, is that they will go away on their own given time. How long that is depends on your body, though it seems children with warts tend to heal faster than adults do.
Personally, from the research I've done, it seems that apple cider vinegar may help. It may not always work though, so if that fails you're best bet would be to see a doctor (note that the options of doctors are as varied as the list of home remedies).
I'm filing this one under "Mixed Results" - not enough data is in for me to say this is true, but it's one of those things that wouldn't hurt to try.