A corn between the fourth and fifth toes can be very painful. It is often soft and quite large and can sometimes be white in colour. It occurs when the fourth metatarsal presses against the base of the first phalanx bone in the fifth toe. The excess pressure causes growth of a corn which underneath is actually an ulcer of the tissue.
To fix this corn we must address the boney alignment of the forefoot. A cast is taken of the foot and an orthotic must be worn inside the shoe at all times for minimum three months to align the metatarsals and the toe bones. Silicone to prop is also moulded to the shape of the fourth toe to give space between the fifth and the third toes also. An adhesive footcorns tape is also work for a month to hold the bones at the corrected position also.