I'm using Soluvel, and it isn't doing much.
Honestly, I think anything that irritates the wart will help. My daughters both had flat warts on their faces. The derm explained to me that warts are so hard to treat because they're on top of the skin and therefore hard for your body's immune system to find. But, when you irritate them, it gives your immune something to actively seek out.
For us, we did topical tea tree oil as well as internal oil of oregano. I have no idea what worked but, one day they got very red and angry looking and then within a few days they were gone. Their bodies finally found the warts I guess?