Yes, you can give your partner genital herpes from giving him/her oral sex if you have an active cold sore or fever blister during this time.
What does a Herpes Lesion look like?
I don’t have any symptoms of herpes, therefore I don’t have herpes.
Can you get herpes from using a hot tub or swimming pool with someone who has herpes?
Can a herpes virus migrate to other areas of the body?
What are the “Prodromal Symptoms” (early warning signs) of Herpes?
Can herpes cause sterility?