Usually herpes pharyngitis is caused by a viral infection, which can lead to a high fever, sore throat, and herpes and ulcers on the inside of the mouth. If it is not combined with a serious bacterial infection, take oral antibiotics, drink plenty of fluids, and spray the throat with a throat spray. Routinely it will not take more than a week and basically get cured. But there are special cases, for example, the immunity is relatively weak, such as small infants, sometimes also combined with systemic infections, may need to use antibiotics, intravenous antibiotics, may be a little bit longer, repeated, even more than a week, two weeks or even two weeks later, and then recur in less than a week, so it will take a little bit longer, but most of the time, but will not be more than a week to be cured.