While an outbreak isnt necessary for herpes transmission, herpes is most contagious about 3 days before an outbreak; this usually coincides with an itching or burning sensation or pain in the area where the outbreak will occur.

What stage of herpes is most contagious?

At What Stage Is Herpes Contagious? While herpes is contagious in every stage, it is the most contagious during the ulcer stage when blisters have burst and fluid is present.

How long after herpes outbreak is it safe?

Do not have vaginal, anal, or oral sex — even with a condom. Wait until seven days after the sore heals. The virus can spread from sores not covered by the condom.