In general, the redness and swelling of the wound may be due to edema caused by trauma or bacterial infection, which need to be changed or treated with medication. 1. Trauma-induced edema: For wounds that appear red and swollen may be due to trauma-induced tissue edema, regular medication changes, with the passage of time, the edema will slowly subside, do not worry too much. The surface of the wound can be sterilized with povidone-iodine, and topical mupirocin ointment can be used to prevent infection. 2. Bacterial infection: for the wound redness and swelling may also be due to bacterial infection, in addition to redness and swelling, may also be accompanied by elevated skin temperature, pain and other symptoms, it is recommended that the wound for the change of treatment, and then take amoxicillin, cephalexin and other antibiotic treatment. If the infection is serious, the affected area may also need to be sterilized to remove part of the suture, drainage of pus treatment. For the wound after this situation, but also pay attention to light diet, pay attention to rest, in order to facilitate the recovery of the condition. For serious symptoms, it is recommended to go to the hospital in time for early treatment. The medication should follow the doctor’s prescription.