I have a lump on my forefoot. It hurts like a cocoon.

This situation generally has two possibilities, one is the sole of the foot long corns. Corns is a physical skin disease, due to prolonged friction and oppression, caused by the proliferation of skin keratin, mostly in the pressure or force parts, such as the front of the foot. Its surface smooth or slightly raised, clear yellow boundaries, the center of the inverted conical keratin embedded in the dermal papilla layer, compression nerve endings, so walking and standing when causing pain. The treatment of corns generally uses methods such as corns paste application, electrocoagulation, corns removal, etc., and requires patients to wear appropriate soft sole shoes to reduce friction and extrusion. In addition, one possibility is that they suffer from plantar warts. Plantar warts are infectious diseases caused by viruses. It is recommended to go to the hospital immediately for relevant treatment.