Blisters in the throat of children are similar to hand, foot and mouth disease, except that they are caused by different reasons. Herpes pharyngitis is the most likely cause of throat blisters, and is caused by the coxsackie virus, while HFMD is usually caused by the EV71 virus. If you have herpes pharyngitis, you can use interferon spray at this time, and if your blood count is elevated, you can use some anti-inflammatory drugs. If you have this disease, you can also use some antipyretic drugs, but also pay attention to hygiene, you can often use salt water to rinse the mouth. Because this disease is easily and repeatedly infected, it is necessary to take medicine frequently until it is cured, and sometimes it is necessary to take injections in time. If there is a fever, timely injection of some fever-reducing drugs, fever-reducing injection, etc.