You should not eat fish when you have a fever. Fish is a fishy and hairy substance that can promote heat in the body, which can cause an increase in body temperature and even cause coughing symptoms, thus aggravating the condition. When you have a fever, you should eat a light diet and drink plenty of water to help with the discharge of sweat, which can have a cooling effect. Fresh juice can be taken with hot water to replenish vitamins and water, and prevent dehydration, which is beneficial to the recovery of fever. Avoid eating spicy, oily and sweet food, and avoid fish, shrimp and seafood. When you have a fever, pay attention to the cold and keep warm to prevent reinfection. You can take cold and flu granules orally, which can treat and relieve the symptoms of fever caused by common cold and influenza. If the body temperature exceeds 38.5 degrees, you can use indomethacin suppositories nanoanal, with antipyretic and analgesic effect, can play a rapid role in reducing fever.