Welcome and thanks for posting your query.Herpes zoster
is not a Sexually transmitted disease
. It can not spread by means of sexual contact so you should not be worried about the same. Herpes zoster at the maximum can give you chicken pox
infection (very rarely) and this too can happen if there had not been a history of chicken pox before.
To explain you medically both chicken pox and herpres zoster are caused by same virus. So any body who have had chicken pox before can get herpes zoster in later life. If you have had chicken pox before then no need of worry. So you need not to be get checked for any kind infections and there is also no requirement for any medications or prophylactic management also.
Hope this information will help you.
Dr. Sanjay Kumar Kanodia