Welcome to HCM,
From your history it seems that you might have corn
on sloe of foot.
Apply Corn cap, available on chemist counter, on the lump, keep this cap very tight on the corn for about 5 days .
After 5 days open the corn cap, there might be some softening of surrounding area.
Now apply another one at the same time and same place.
After 5 days remove corn cap and corn will come out.
Keep in mind that cap should remain in continuous contact with corn, then proper result will be there.
Ok and bye.