Following a thread on here where someone applied ACV to a piece of cotton wool, sellotaped in place, left alone and the wart came off in two weeks I thought I'd give it a try.
I have a small (5mm) hard wart that has been on my knee for over 8 years, I've tried every over the counter remedy, freezing it, duct tape, asking GP (big no from them as it's now a cosmetic procedure)
So 2 weeks ago I started the ACV. Stung a tiny bit but not that bad. Left it alone for 3 days at a time, removed and replaced "dressing".
On Saturday I took off the cotton wool and this thing came out, like a white lump, looked down and there was a 1cm wide hole in my knee, and then it started to bleed like mad!!
Now I have a kneehole 
that is seemingly filled with white skin, all round the hole is scabby and horrible. It's a good few millimetres deep!
I don't know if the wart is actually gone, how can I tell? I think I burned the surrounding skin!