With the exception of a report by Gros in 1952, there are no publications concerning the therapeutic effectiveness of gamma globulin in the treatment of herpes zoster. The report by Gros concerns 11 German patients who responded very well to the treatment even though the supply of gamma globulin was limited.
I have used gamma globulin to treat six patients, three men and three women ranging in age from 20 to 60 years; the classic symptoms of herpes zoster, systemic manifestations, radicular pain, and herpetic skin lesions were present in all but one of the patients treated, and he had typical postherpetic neuralgia of two years' duration. The characteristic herpetic lesions were distributed over the thoracic region on one side in three patients, over the lumbosciatic area in one patient, and over the abdominal area in one patient. The area of involvement of the one patient with postherpetic neuralgia
Weintraub II. TREATMENT OF HERPES ZOSTER WITH GAMMA GLOBULIN. JAMA. 1955;157(18):1611. doi:10.1001/jama.1955.02950350025010a