Surgical stitches on the leg four or five days after the edge of a small rash and lumps need to be dealt with according to the specific circumstances, may be allergic to surgical stitches caused by a small rash, scar hyperplasia or infection caused by lumps, treatment methods include keeping the wound clean and dry, the use of drugs to soften the scars, the use of antibacterial drugs, and so on. 1. Small skin rash caused by allergy to surgical suture, no need to worry too much, usually keep the skin around the wound clean and dry, avoid getting wet, prohibit scratching the allergic skin, use alcohol to sterilize the allergic skin, the symptoms can be relieved in a few days. 2. Wound scar hyperplasia caused by lumps, usually no special symptoms, this time the use of scar softening drugs, such as Centella Asiatica Glycoside Ointment. 3. Surgical wound infection caused by lumps can have redness, pain and other symptoms, at this time can be used locally antibacterial ointment such as fusidic acid, mupirocin, etc., but also oral antibacterial drugs to fight infection, such as ceftriaxone, roxithromycin. Surgical stitches on the leg four or five days after the edge of a small rash and lumps can also be seen in other causes, it is recommended to consult with a doctor in a timely manner, timely treatment, so as not to delay the condition. All of the above drugs should be used under the guidance of a doctor to cause adverse reactions.