After your baby takes fever-reducing medication, there is a process of absorption that takes about an hour to take effect. Different antipyretic drugs take different lengths of time to be absorbed, and there will be some differences in the time it takes to lower the temperature. After taking antipyretic drugs, the heat in the body needs to be distributed through the body surface. Generally, sweating will begin about 20 minutes after taking the medicine, and with the discharge of sweat, the heat in the body will also begin to drop, and the body temperature will basically return to normal after one hour. After taking the medicine, if there is no sweating, then you can take a bath with a warm towel to help promote the medicine to work as soon as possible. At the same time, you should feed more warm water to promote body sweating and at the same time reduce the side effects of the drug. The choice of antipyretic drugs should not be based on the time of action of the drug. Some drugs are fast acting, but they are not good for the baby’s body and are not recommended to be used easily. In addition, due to the immaturity of the development of the temperature center in children, individual children may experience a temporary temperature increase after taking antipyretic drugs inappropriately. Parents should pay attention to keeping the child warm and carefully observe the child’s mental state and whether the child is aphasic, and the temperature can generally recover on its own in 24-48 hours.