For warts on the fingers or toes, which stick out, Duct Tape is the best treatment I’ve found. It’s even cheap and non-chemical. Wrap a piece, ripped to the width you need, around the finger. That’s it! Change it once a week. Depending on how long you’ve had it, it will go away in 2-?? weeks.
Plantar warts (on the sole of the foot) are a different story. Since they grow UP, into the foot, duct tape doesn’t help. If it’s newish, an OTC cure may help, but likely you’ll need to see a dermatologist for Liquid Nitrogen. The kind that goes on with a Q-Tip is not as strong as the kind that’s sprayed on, so you may need to keep trying. Warning: it HURTS! during the application, and for hours and/or days after. However, it does usually work after 1-2 treatments.
My doctor said it’s important to treat warts ASAP, bec. they go away faster if they’re newer, but more impotantly, bec. they “shed virus” wherever you go, to other parts of your body and to other people! Any tiny microscopic cut is a potential entry for the virus.
Good luck!!