The precursors to the onset of herpes, the prodromal symptoms, usually include low-grade fever, malaise, erythema, and pain that may occur. Herpes pre-symptoms are usually patients will occur unexplained low fever, fatigue, loss of appetite, etc., in addition to the local skin can be found in the distribution of erythema, erythema can be alone or gathered into a piece, at the same time will also be the local skin pain, may be itching with a slight pain or pins and needles pain, a small number of patients in the healing of the pain may also occur. With the development of the disease gradually appear blisters, vesicles, scabs and other manifestations. Once the symptoms appear, you need to consult a doctor immediately, early diagnosis, and actively cooperate with the doctor to carry out treatment can shorten the course of the disease.