Rectal administration of medication in children usually involves placing the child in the correct position and injecting the medication into the rectum through the anus. 1. The main thing is to adjust the body position of the child, for example, to correctly adopt the prone position or lateral position. And defecate 30 minutes before rectal administration, and then clean the anus. After cleaning the perianal area, the drug is injected through the anus to prolong the residence time of the drug in the anus and rectum. 2. In addition, the prepared medication and inhalation needle are fitted with a drug delivery catheter, the air in it is expelled, and the syringe containing the medication is heated. However, it is necessary to soak the catheter in hot water for about 10 minutes. 3. After soaking, paraffin oil is applied to the distal end of the catheter and a small amount of paraffin oil is applied around the anus, the catheter is inserted into the anus and the liquid medication is injected into the rectum. Finally, after the drug has been successfully injected, you need to pat the buttocks appropriately 2 to 3 times and keep the buttocks in lateral position for about 10 minutes, which can make the drug better absorbed by the body. It is recommended that after rectal administration of the drug, children should pay attention to keep the anus clean, change underwear and wash the perianal area frequently. After rectal administration, children may experience diarrhea or stool leakage, and irritation of the perianal skin, such as itching and infection. Treatment needs to follow the doctor’s advice.