Redness, swelling and itching around the wound is normally a normal phenomenon, but we can not rule out wound infection, allergies and other reasons. 1. Normal phenomenon: when the wound is healing, the local damaged nerve tissue and vascular system at the wound is in the process of repair and growth, which may cause redness, swelling and itching. 2. Wound infection: If the wound is not properly cared for, the local area is infected by viruses or bacteria, causing inflammation, which will lead to redness, swelling and itching around the wound. 3. Allergy: If the wound location is allergic to the use of antiseptic water, gauze, medication, etc., it may cause redness, swelling and itching around the wound. Causes of redness, swelling and itching around the wound more reasons, when the adverse reaction, should go to the hospital in time for examination and diagnosis, to clarify the cause of the disease after targeted treatment.