There are more causes of small blisters (blisters) on the face and neck, which may be related to herpes zoster, herpes simplex and eczema. 1. Herpes zoster: caused by varicella-zoster virus, which can lurk in the body for years. The virus is active when there is fatigue, infection and other immune deficiency. It produces small blisters on the skin of the neck and face. 2. Herpes simplex: mostly due to herpes simplex virus infection, triggered when there is a cold, overworked, can cause the neck, face skin appear limited cluster of small blisters. 3. Eczema: may be due to food, drugs, or contact with the external causes and the body of the internal causes of the joint action, in the acute stage of eczema may cause the neck, face erythema, papules, blisters and other symptoms. When there are small blisters on the face and neck, it is recommended to consult a doctor in time, follow the doctor’s instructions for further examination, clarify the cause with the help of the doctor, and carry out targeted treatment or therapy.