Is this a healing plantars wart? Do I need a doctor?

So I have a plantars wart, I went to the doctor and she scraped the skin that had grown over it and put this liquid stuff on it and I couldn't get it wet for 24 hours. A day or two later, it looked like the wart was getting bigger or another one coming, so I went back and it was just a blistering of the skin due to the medicine she used, but since I was there she scraped some more, got deeper and repeated the liquid thing. It got all white and appeared to be getting better, but I hurt to walk on so I padded it was a band-aid and wrapped my foot, except at night so it had a chance to get air to heal. Then I went to prom and didn't wrap my foot up because the wart wasn't bothering me. After prom I looked at my foot and the blistered skin looked to be pealing so I peeled it off, it came off really easy and didn't hurt at all. The skin that had the blood vessels came off too and under it was this white mucus looking thing.. I tried to pull it out, but it really hurt and it was late at night and I figured if it wasn't coming out easily that I shouldn't mess with it then. Now it's a day after that and skin is healing over this white thing and it still hurts a little, but I'm not sure if I should go back to the doctor and have her look at this to remove it? or just let it keep healing or I don't even know what it is..help please :]