The incubation period of herpes pharyngitis can cause transmission and is still the main phase causing transmission. Because herpes pharyngitis has no obvious systemic or local symptoms during the incubation period, patients are often still out and about, studying, working and living. Patients are often still out and about, studying, working and living, so the incubation period is an important source of infection that causes transmission. Herpes pharyngitis occurs in children between the ages of 1 and 7 years old, and most children in this age group are in kindergarten and elementary school, and are clustered. Once infected, the disease tends to develop in clusters. Herpes pharyngitis is an acute upper respiratory tract infection caused by coxsackievirus, with an incubation period of 2-4 days once infected. The onset is mostly acute, with sudden onset of high fever and pain in the pharynx and a large number of small herpes and ulcers in the isthmus. In the absence of secondary bacterial infections and complications, the disease usually resolves spontaneously in 4-6 days. When a child with herpes pharyngitis is present, close contacts also need to be isolated and observed.