Children with eczema can use potassium permanganate if it is acute, but it needs to be used under adult supervision and in accordance with the doctor’s instructions, according to a certain proportion of water, and should not be used indiscriminately. If the eczema is chronic, it is necessary to consult a doctor. Potassium permanganate is a disinfectant and antiseptic drug, which can be used on eczema to help disinfect the skin; if a child suffers from eczema, potassium permanganate can be used, but it should not be used indiscriminately, and should be consulted with a doctor before use, and used in accordance with the correct proportion. After the use of potassium permanganate, if there is a burning sensation, redness and swelling, you must stop using it immediately, and at the same time, clean the local skin, if necessary, consult a doctor in time. Potassium permanganate is a topical drug and should not be taken orally. After use, it should be placed out of the reach of children to avoid the risk of accidental ingestion. Potassium permanganate should be used in accordance with the doctor’s instructions, so parents are advised to take their children to the hospital in time to clarify the extent of the disease, and use the drug under the guidance of the doctor, do not abuse the drug, so as not to lead to adverse consequences.