I have fever blisters only a couple times in a year. I know i can give my girlfriend herpes by giving her oral while i have a fever blister, but i was wondering if it was possible to still give her herpes by oral even if my mouth was completely clear of fever blisters.
You sure can transmit without having a cold sore! That's how I now have genital HSV1. My partner has oral HSV1 and never in the 5 years we've been together did he have a cold sore - but, through oral sex, I now have it. It can be transmitted during viral "shedding", when the virus is active but there are no symptoms.
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