A foot ulcer that doesn't heal is a major worry. It could be brought on by an underlying illness, strain on the area, infection, or poor blood circulation. Avoid going barefoot, keep the site clean, and don't use powerful creams without a prescription. You should visit a physician or wound care professional as soon as possible; they may need to thoroughly clean the wound, assess your blood flow, and begin administering dressings or medicines to promote healing. Complications are avoided with early treatment.