If the fever does not subside after taking Merlin, the following methods can be applied: 1. It is necessary to carefully look at whether the dosage is correct and accurate, such as children do not count the amount of medication according to their weight, or the application of Merlin dose is insufficient to cause the fever does not subside after taking. 2. 3.If the fever does not subside after drinking cold water or cold water, the patient should be given warm water or warm treatment, for example, the patient should be covered with a blanket to cover the sweat and try to perform insulation treatment to reduce the fever. 4.Some other drugs can also be taken to reduce the fever together with Merlin, for example, antipyretic paste on the forehead or anal application of antipyretic suppositories, as well as taking antibacterial and antiviral drugs, can Co-merlin together to reduce fever.