Hello Thanks for the query Herpes zoster is caused by varicella zoster virus.Once a person suffers from chicken pox (varicella zosrter) infection the virus remain in the body in latent form even when the symptoms subsided.These latent virus becomes active in certain situation and causes rashes in a particular area called herpes zoster or shingles. As like chicken pox the direct contact with the rash can be infectious and may lead to viral infection in a non immune person. But this illness will cause chicken pox and herpes zoster does not occur directly. So chances of getting herpes zoster lesions after contact with a person who is suffering from herpes zoster is very less. I would suggest you to consult a local physician to make a proper diagnosis and hence management accordingly Regards