How long ago did you do the extraction on the bottom of the foot? Did it swell more after?
I personally would go through the bottom again first, see what you can get out. You may need to do some squeezing, and using an oral syringe to flush it out may help. Use some chlorhexidine solution (hibiclens) or a diluted betadine solution to flush. Pictures after that, before you bandage, would be good. It may bleed a little, but it shouldn't be a lot, have some gauze or paper towels handy for if you need it. You can stop and put pressure on it to stop bleeding if needed, before resuming. It may not bleed at all. Often you can feel bits of pus/infection in there as hard bits that shouldn't be there. Sometimes it can take a fair bit of manipulation to get it all out. Make sure you work on those area's between the toes as well, squeezing and pressing to see what you can get out. If any remains inside, it will continue to regenerate.
