if theyre small liquid nitrogen works well. Dr Scholls and Wart-Away or whoever the other wart removal company is have OTC freeze away treatment. It says for use on plantar warts as well but I wouldnt suggest it.
http://www.drscholls.com/product.aspx?prodid=67
http://www.drscholls.com/edu.aspx?eduid=10
theres a link about the freeze away
I had a wart on my hand once.. I went in for a quick freeze, it fell off and I had to put this cream on it. Its brand name is Aldera made by 3M Pharmaceuticals. Its Imiqumiod cream(dont ask me how to pronounce it) and heres a link about it
http://health.yahoo.com/drug/d04125a1
if you have insurance the cost shouldnt be bad. The liquid nitrogen and Aldara(especially the aldera) are very expensive
My doc was nice enough to slip me some samples and told me if I needed more to just ask since Im poor and in college. If youre pretty friendly with your doc this might work. However I called the pharmacy just to see how much it would be.. my co-pay is $5- $10 reguardless but they said something like $250 for 3 applications
Dr Scholls products(salicylic acid) work if you have time and dedication.. the freeze away stuff is supposed to work instantly compared to their liquid treatments.