Plantar warts are skin growths on the feet caused by human papillomas, which may appear as yellowish or yellowish-brown patches. Some plantar warts can go away on their own, but when they don’t go away on their own or get worse, they need to be treated with medication, physical therapy or surgery. 1. Drug treatment: (1) Topical medications: The topical medications usually used to treat plantar warts include salicylic acid, retinoids, and 5% fluorouracil ointment. It has the effect of removing thickened keratin or anti-virus, so as to achieve the therapeutic purpose. (2) Intradermal injection: pingyangmycin, bleomycin, interferon and other intradermal injections can be used to cause local tissue necrosis and accelerate wart shedding. 2. Physical therapy: (1) cryotherapy: is currently the most commonly used method of treating plantar warts, usually using liquid nitrogen freezing. The liquid nitrogen is sprayed or coated on the affected area to make the warts necrotic and fall off. (2) can also be electrocautery, laser, microwave and other methods to achieve high temperature, so that the warts degenerate, necrosis off. 3. Surgical treatment: If other methods have no obvious effect and the area of the lesion is large, then surgical excision can be carried out, but the surgical treatment is easy to cause scarring and easy to recur after the operation, so the surgical treatment is not a conventional treatment method. If the plantar warts don’t go away on their own, the patient can go to the hospital and be treated under the diagnosis and guidance of a professional physician.