The baby fever ate antipyretic, not fever may be a short period of time, the drug dose is insufficient to cause, but also may not be directed at the cause of the treatment led to. 1. short medication time: each person on the drug composition absorption time is different, part of the child in taking fever reducers need half an hour to an hour to take effect, so there will be a baby fever took fever reducers, not fever. 2. Insufficient dose of drugs: the baby’s fever reducer needs to be calculated according to the actual weight, if the baby takes too little dose, the efficacy of the drug is relatively poor, which leads to eat the fever reducer temperature does not go down. 3. not for the cause of treatment: if you only give the child to take antipyretic drugs, not for the cause of treatment, as long as the cause of the disease is not removed, the symptoms will recur, can cause the baby repeated fever. The baby fever ate antipyretic medicine, not fever may also have other reasons, it is recommended to go to the hospital in time, improve the examination to clarify the cause of the disease, under the guidance of the doctor to give targeted treatment or treatment.