Shingles is generally not contagious after the scabs have fallen off. Herpes zoster is caused by varicella zoster virus infection, is an acute infectious skin disease. The main manifestation of unilateral zonal distribution cluster blisters, with pain, some patients will be accompanied by lymph node swelling and pain and other symptoms. Herpes zoster has a certain degree of contagiousness, it is recommended to isolate the treatment, to avoid infecting other people. Herpes zoster is contagious in the early stages of the disease, especially after the blisters rupture, the contagiousness is strong; blisters dry scabs contagious may be reduced; if the scabs fall off, this time is no longer contagious. It is recommended that patients with herpes zoster go to the hospital dermatology, pain department, under the guidance of the doctor to give the appropriate medication, but also for the complications of symptomatic treatment.