During labor and delivery, a lateral incision is performed to avoid more serious lacerations to the perineum. After the lateral incision, it is recommended to take a sitz bath with potassium permanganate. Its main effect is that it has an antiseptic effect. Through potassium permanganate sitz bath, the local blood circulation will be accelerated, which will make the wound heal as soon as possible. It is recommended that the preparation of potassium permanganate must not be too strong, so as not to cause burns to the mucous membrane tissues. It is recommended that potassium permanganate can be prepared to 1/5000, that is to say, the solution prepared is light pink in color will do. In clinical practice, it will achieve the effect of disinfection and sterilization. However, it is important to note that potassium permanganate sitz baths utilize heat to fumigate the vulva, and do not sit in water for immersion.