The main reason for the hard callus on the foot grinding is due to the long time friction and extrusion caused by resulting in excessive thickening of the stratum corneum and formation. Patients can eliminate the purpose of hard callus through general treatment, drug treatment, physical therapy and so on. 1. General treatment: patients can choose loose shoes and socks, avoid prolonged standing and walking, can also be soaked in hot water to soften the callus at the skin of the stratum corneum, long-term adherence can be achieved to alleviate the effect. 2. Medication: patients can apply salicylic acid ointment, polysulfonic acid mucopolysaccharide ointment, urea ointment and other medications under the guidance of a professional doctor to gradually soften the skin’s stratum corneum, thus eliminating the hard callus. 3. Physical therapy: patients can also be laser, freezing and other physical therapy methods, the use of heat or low temperature on the hard callus ablation or freezing, so as to achieve the purpose of elimination. When there is a grinding callus on the feet, it is recommended to go to the regular hospital for examination and treatment, not private treatment to avoid infection.