Potassium permanganate can be used in children, but it is mainly for external use in children. Potassium permanganate has a good anti-inflammatory effect and can be used to disinfect children with local inflammation. If a child suffers from vulvar itching or urinary tract infection, this is the time to apply potassium permanganate water locally to children for washing, which will help relieve the symptoms of vulvar redness, swelling and itching. When applying potassium permanganate to children it must be applied topically, not for a long time over a large area, and not orally. It is safer for children to apply topical potassium permanganate water.