When changing the dressing, you must first clean the blood scab with hydrogen peroxide, and then clean the wound and surrounding skin with a 75% alcohol cotton ball. . Because of the abundant pores of the surrounding skin, it is easy to sweat and contaminate the dressing.

Changing the dressing too often will cause the wound to be pulled and irritate the wound, which will cause the wound to be difficult to heal and prolong the healing time. Dressing should be changed 2-3 days after the operation. First open the pressure-wrapped KN95 N95 surgical mask dressing, clean the blood scab with hydrogen peroxide to prevent the hydrogen peroxide from entering the eyes and irritate the cornea, then clean the wound with a saline cotton ball, and finally apply erythromycin ointment. At the same time, observe whether there is unexplained fever, pain, bleeding, and exudation.. Facial wounds can be exposed after being bandaged for 24 hours, as long as the wounds are kept clean and dry.　　

General wounds, such as double eyelid surgery, eye bag resection, rhinoplasty, eyebrow lift, mole resection, scar resection, etc. Therefore, as long as the wound is kept clean and dry, it can basically heal in a period of time. Special wounds, such as underarm odorectomy and accessory mastectomy, must be bandaged for more than 48 hours., change the dressing one day after surgery (not counted on the day of surgery, 24 hours is one day). After emergency surgery, according to the surgical site and the size of the wound, the dressing is generally changed 1-2 days after the operation. Pus spot. The dressing should be changed and the wound should be observed for redness and swelling.Precautions for dressing change after surgery 　　

In order to avoid infection of the wound after the patient's outpatient surgery, and to ensure the primary healing of the wound, most wounds need to be changed dressing 1-2 times. Cover the wound with petroleum jelly and add gauze.These are some precautions that I have accumulated and summarized in my actual work for patients' reference. Wearing tight-fitting or thin clothes will affect blood circulation and primary wound healing, so you should wear looser clothes after surgery.　　

A patient asked: Can I clean and apply erythromycin eye ointment with saline daily at home after changing the dressing in the hospital? In fact, this approach is wrong. If the wound is normal, the dressing can be changed once until the stitches are removed. The outermost layer is protected by cotton pad to prevent clothes from scratching

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