Metatarsal warts after freezing foot swelling is a normal phenomenon, usually do not need to take special treatment, keep the local clean and clean. If the swelling of the feet is unbearable, the patient can respect to take medication. The plantar warts are caused by the human papilloma virus infection, or considered to be trauma, friction and other factors induced by the cause. Plantar warts can occur on all parts of the soles of the feet and are characterized by pimples, plaques and pain. In general, cryotherapy is a common treatment for plantar warts, usually based on liquid nitrogen cryotherapy. After cryotherapy, as the blisters will merge into huge blisters, total swelling of the top of the foot can occur, usually no special treatment is needed, pay attention to protection, and wait for natural relief. Most of the patients, after a period of time, the edema can subside by itself, no need to worry too much. Ensure adequate rest and avoid overwork. If the swelling symptoms are unbearable, some patients can take anti-inflammatory drugs under the guidance of the doctor, such as cefazolin, cephalosporin and so on. If patients with plantar warts have all swollen feet after cryotherapy, they need to report to the doctor in time and ask for the doctor’s guidance in light of their own situation.