Baby with herpes in the throat fever lasts a few days can not be generalized, if it is caused by herpes pharyngitis, it may last about 2-4 days, if it is caused by hand, foot and mouth disease, it may last about 1-2 days. If the baby suffers from herpes pharyngitis, there may be a herpes throat fever phenomenon, mostly due to viral infections caused by the onset of fever, usually lasts about 2-4 days, there is no specific antiviral drug treatment, more symptomatic treatment, such as body temperature exceeds 38.5 degrees, you can take ibuprofen and other medications for symptomatic fever reduction treatment. Throat with herpes fever may also be related to hand, foot and mouth disease, this kind of disease fever lasts a shorter time, may be in 1-2 days or so, in addition to symptomatic heat treatment, generally can take home care measures, such as drinking more water, rest, light diet, pay attention to the oral cavity and skin cleanliness and so on. The baby throat herpes fever may also be related to other causes, it is recommended that timely medical treatment, the use of medication to follow the doctor’s instructions.