Foot calluses are formed after constant friction, serious pain and discomfort will occur, especially in the winter when the weather is dry, there are many ways to remove foot calluses, introduced as follows: 1, the need to wear comfortable shoes to avoid excessive friction. 2, you can soak your feet in warm water, so that the calluses softened after you can use a file to gently remove the thicker calluses, this method is not possible to remove clean at once, it may take several times. Again, for more limited foot calluses, you can use topical drugs to remove, commonly used topical drugs for keratin exfoliators, such as 30% salicylic acid fire cotton gum, vitamin A acid ointment, 20%-40% urea, etc. 3, for thicker and more limited foot calluses, you can use liquid nitrogen freezing treatment, you need to go to the hospital with liquid nitrogen treatment, liquid nitrogen freezing treatment through low temperature, the lesion tissue degeneration necrosis to achieve the purpose of treatment. Freezing treatment may appear blisters at first, slowly crust off, so that the thick calluses together with the fall off.