Herpes pharyngitis is possible to get again after once, mainly for the following reasons: First, the herpes pharyngitis pathogen is mainly coxsackie group A virus, including subtypes 1-6, 8, 10, 22 and so on, each subtype of virus will produce the corresponding antibodies after infecting the patient. However, if the next infection is with another type of subtype of virus, the antibodies are not available, so you will get the disease again, because the antibodies are not common between each type of virus. Second, herpes pharyngitis, even if the same virus produces antibodies, the antibodies do not last long and are not lifelong immunity, so after a period of time when the virus antibodies disappear, herpes pharyngitis can occur when the same subtype of virus infection is encountered again. Patients with herpes pharyngitis must be well isolated, actively treated clinically, improve immunity, pay attention to oral hygiene, pay attention to food hygiene, go to public places as little as possible, and usually exercise regularly to increase the high protein diet.