The callus on the outside of the little toe is very painful is likely to be caused by corns, can be used externally 50% salicylic acid ointment or surgical excision. 1. the lateral part of the little toe by mechanical stimulation such as long-term extrusion, friction, can lead to corns, preferably in adults, lesions for the border clear yellowish or dark yellow conical corns, smooth surface, due to the tip of the corns compression of the peripheral nerves in the dermis, standing or walking pressurized conscious pain. 2. Can be used externally corns cream, 50% salicylic acid ointment, but should protect the surrounding normal skin, can also be taken to surgical excision of corns. In addition, liquid nitrogen freezing, laser therapy can also be appropriate choice. It is recommended that when the phenomenon of callus on the outside of the little toe is painful, go to the hospital in a timely manner, and the above drugs need to be used in accordance with medical advice.