I'm also having this problem. I bought the Dr Scholl's freeze away and acid in one package for $20.00. I've done two freezings and keep putting on the acid once every few days (no real routine since I keep forgetting to do it twice a day like the directions say). Once the skin looks dead, I pick it off and then make sure to put on the acid twice a day for the next day. It's been 2 weeks, and it's almost gone now, should just take another week of treatment.
I had one 8 years ago also. The first thing I bought was just the salicylic acid, but that wasn't doing the job as it made the wart smaller, but wasn't getting rid of it fully. Then I bought the freeze away, as I had already tried the acid for 3 weeks. The freeze away seemed to do the trick, I think it was aided by the acid since most of the wart was dead from it already. That's why this time, I just wanted to be safe and bought both at once so I wouldn't be wasting time going back to the store.

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