Stellate Ganglion Block in Herpes Zoster

Patient who will be presented to Tanta University Hospitals complaining of acute herpes zoster with onset of vesicular eruption less than 7 days will be included in this clinical study. Patients will be excluded if they refused participation, had allergy to local anesthetics, coagulopathy, local infection, glaucoma, or neurological deficit. All the patients will receive acyclovir (antiviral therapy) and pregablin (analgesic) and the patients will be classified into two groups:- Group I (control group): Patients will receive sham block weekly for three times Group III (SGB group): Patients will receive stellate ganglion block weekly for three times The time of first block after the onset of vesicular eruption, the incidence of PHN, NPRS at visit, duration of acute HZ , duration of PHN (if occurred), and the incidence of complication will be measured.