Home treatment is appropriate for a minor puncture wound to the foot
that affects only the outer layers of skin and that does not bleed or bleeds
only a drop or two.
An injury that occurs with enough force to go through a shoe is more
likely to cause a serious injury to the foot, such as striking a bone, which
increases the risk of a bone infection (osteomyelitis).
Puncture wounds through the sole of a shoe are more likely to be
contaminated with bacteria from the shoe that may cause an infection. The
bacteria Pseudomonas is a common cause of infections
when a puncture wound occurs through the sole of an athletic shoe.
You may have an increased risk of infection if you have any health
risks and a puncture wound to your foot. Circulation to the foot is affected by
many health conditions, so your foot wound may have difficulty healing. Wounds
in the foot between the toes and the arch ("the ball of the foot") have the
highest risk for infection.