Patients with herpes behind the ear are often caused by a viral infection. It usually occurs when the patient’s body resistance is reduced, and the patient’s pain is particularly pronounced. If the herpes breaks down, there will be a lot of exudate flowing out. Patients must not touch it with their hands, as this is particularly likely to aggravate the patient’s condition and lead to an infection behind the ear. In terms of treatment patients can first disinfect with iodophor and apply famciclovir or ganciclovir gel to the surface of the herpes. After about 3 days of active treatment, the patient’s condition should improve to some extent. During this period, the patient must keep behind the ear clean and dry to avoid aggravating the infection. Patients should exercise more to strengthen their resistance to reduce the chance of viral infection and should not smoke or drink alcohol during this period.