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Ask Dr. Hanish Babu, MD Your Own Question
Dr. Hanish Babu, MD
Dr. Hanish Babu, MD, Dermatologist
Category: Health
Satisfied Customers: 544
Experience:  MBBS; MD (Skin & Sexually Transmitted Diseases)
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I have a painful lump on bottom of foot under skin. Help

Resolved Question:

I have a small painful lump on the underside of my foot in the skin, feels like a bb stuck under the skin, no open wound. Hurts to walk on it.

Submitted: 8 years ago.
Category: Health
Expert:  Dr. Hanish Babu, MD replied 8 years ago.

Hi,

Thank you for asking your question on Just Answer. By the way, it would help me to know:

  1. How long have you had this lump?
  2. Where exactly on the foot is this lump situated? Is it over pressure points?
  3. Are the normal skin markings retained over the bump or is the surface showing irregularities?
  4. Is it more painful on direct pressure or when squeezed between the thumb and forefinger?

Thank you again for trusting us with your problem. Please reply as soon as possible so that I can finish answering your question.

Customer: replied 8 years ago.

I have had the lump for 3 weeks, its small.
Its located on the bottom front so walking is irritating. It is over a pressure point.
The surface has redness and a very small bump. No hole or cut.
Definitely hurts when there is any pressure.
Looks like it could be some form of pimple but its a hard little bb under the skin.

Expert:  Dr. Hanish Babu, MD replied 8 years ago.

Hi,

What you have is a corn or plantar wart. Both causes the symptoms you have described, the differentiation come from the specific queries I asked for:

1. Corn usually has the overlying skin structure retained partially, while skin overlying wart is not normal.

2. Corn is more painful on direct pressure, while wart is more painful on squeezing from sides

3. Cutting the superficial portion leaves bleeding spots in wart, while it leaves a whirl pattern or pit in case of corn.

4. Both may be found on pressure points, while warts can occur on other non - pressure bearing areas as well.

The treatment is same for both:

  1. Apply an OTC Salicylic acid plaster for 3 days, then pair off the top, macerated part with a blade carefully.
  2. After the first pairing the plaster is replaced with salicylic acid/lactic acid solution at bed time and the pairing done every 3rd to 4th day.
  3. If not very deep, most corns and warts will be removed in 2-3 weeks.
  4. This is the preferable method than excising the lesion at a go, which could make the heel painful for months to come.
  5. Cryo, electrocautery and lasers are other options for plantar warts.
  6. To reduce the chances of recurrence, Corn Cushion rings are used for a few months after removal, so that the pressure points are protected against further pressure and recurrence of corns.
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