If the child after taking antipyretic medicine still high fever does not go down, you can use the following measures to relieve: first, give children more water. You can give children more water to drink, so that the body’s water increases after the amount of urine will increase, the children’s body heat will be excreted through the urine, which is very favorable to the fever. Second, oral rehydration salts. If the child eats less, there will be dehydration and electrolyte disorders, especially in the case of high fever, oral rehydration salts can effectively replenish water and correct electrolyte disorders. Finally, children need to be switched to antipyretics promptly. If the child is not doing well on acetaminophen, switch to ibuprofen.