Patient: Description of the condition (onset time, main symptoms, hospital visited, etc.): Infection due to corns after the application of corns ointment, due to the deep location of the corns, and then septic, the wound has healed, but the back of the foot pain, December 14 magnetic arch vibration shows the third toe bone marrow edema, the last few days there is a tendency to aggravate, the whole foot is a little swollen pain swelling feeling. I’m allergic to penicillin, and I’m taking oral fluoxacin (Colistin). What is the effective treatment to control it and cure it without aggravating the surgery? Thanks a lot! Doctor: Hello, whether the foot is infected or septic, the most important need to observe the following points: first, the general condition, whether there is fever and other uncomfortable feelings, second, whether the local redness and swelling, whether there is a sense of fluctuation, and third, the blood routine shows a significant increase in white blood cells; if there is the above performance, the primary treatment is incision and drainage, on this basis, anti-infection treatment; you can ask the doctor to see whether there is a sense of local fluctuation, in addition The patient: Thank you for your answer! The white blood cells are not significantly elevated, no fever, but local redness and swelling heavy pain. The whole foot is red and swollen. Tuberculosis test was positive many years ago and my doctor had said I had lifelong immunity. Guess it’s probably not time for a cut, probably just a step away.? Doctor: Hello, please ask your local doctor to check whether there is a fluctuating feeling, if there is no fluctuating feeling, anti-infection treatment can be carried out, in addition, you must pay attention to elevate the affected limb, as little as possible to the ground, may help to reduce local swelling; if there is a fluctuating feeling, must be incised to drain the necrotic tissue, or the infection will easily spread, antibiotics will not achieve the desired effect. Patient: Thank you very much for your reply! Recently, the disease has been controlled, no fluctuating sensation, the affected limb as far as possible not to go down and elevated, no need to do surgery for the time being, but local pain, continue to use clindamycin and fosfomycin.