After hemorrhoid surgery, edema on top of the incision can be treated with hemorrhoid cream and sitz baths with potassium permanganate solution. After hemorrhoid surgery, edema at the surgical incision is a common phenomenon, you can generally use medication. First of all, you can use hemorrhoid cream treatment, commonly used musk hemorrhoid cream, compound coriander acid ester cream, etc., usually take a small amount of hemorrhoid cream can be applied directly to the affected area. At the same time, you can also use 1:5000 potassium permanganate solution sitz bath treatment, sitz bath generally in the night before going to bed or after stool, while the water temperature can not be too high, too high water temperature will make potassium permanganate failure or damage to the skin, sitz bath time for 5 ~ 10 minutes. After hemorrhoid surgery, after defecation is easy to hemorrhoid surgical incision contamination, need to pay attention to hygiene clean and clean, otherwise easy to cause infection. The above medications are recommended to be used according to medical advice.