When you have a fever, warmth in the hands and feet is not always a sign of fever reduction, but also needs to be seen in the context of the whole body. In most people, sweating occurs after using antipyretic medication, followed by a possible decrease in body surface temperature of the limbs and trunk, or even chills. When you feel that your hands and feet are still warm after using antipyretic drugs, it is likely that the effect of the antipyretic drugs has not been exerted, so you can observe for another 10 to 20 minutes. Because many antipyretics, such as acetaminophen tablets, are taken for 20 to 30 minutes before the body temperature slowly begins to come down, often in about an hour before the body temperature returns to normal. At this time, patients must be patient and check their body temperature regularly, not relying entirely on physical performance or self-feeling of warmth in the hands and feet to speculate whether the fever has subsided. After more than 4 hours, if there is no change in temperature or if the temperature rises again, the patient should change to another antipyretic drug or go to the hospital to find out the cause of the fever. In short, when you have a fever, you should always measure your body temperature under the armpit with a thermometer, and not rely on your senses to guess if you have a fever or if your fever has gone down, and you should not take fever-reducing medication blindly.