The phenomenon of sore limbs is relatively common when you have a fever. First of all, a fever will result in an increase in body temperature, and due to the increase in body temperature, the metabolic rate of the body will increase. In order to meet the demand for energy, a large amount of anaerobic glycolysis will be produced, which will produce a large amount of lactic acid, which can easily accumulate in the muscles, resulting in body aches and pains, and it is very easy to have soreness in the limbs when you have a fever. Fever-reducing treatment can effectively relieve the symptoms, fever-reducing drugs are non-steroidal anti-inflammatory drugs, with anti-inflammatory pain and fever-reducing effect, for the relief of limb pain and fever, the effect is better. In addition, oral ibuprofen suspension, acetaminophen suspension, acetaminophen granules can also be taken to reduce fever. In adults, fever reducers such as antipyretic suppositories and indomethacin suppositories can be inserted into the anus to reduce fever. If there are recurrent fevers, repeat the medication once after 4-6 hours.