Patients with blisters behind the ears, the main consideration is herpes zoster behind the ears, usually due to viral infection, the patient may be in the meantime the body’s resistance is relatively poor, or go to a crowded place is particularly densely populated by the infection. The main symptoms are particularly obvious ear pain, even tinnitus, hearing loss, and sometimes combined with facial paralysis. In terms of treatment, it is recommended that patients actively use antiviral drugs, such as antiviral oral solution, four seasons antiviral combination or acyclovir tablets patients can also apply ganciclovir cream or acyclovir gel behind the ear can effectively play an antiviral role. After active treatment, the patient’s condition should gradually improve and the herpes behind the ear should break out and gradually disappear in a week or so. During the treatment period, patients must pay attention to their health and avoid catching a cold to avoid aggravating the condition.