no your saliva is not always carrying the herpes viruses. most of the time you are capable of speading the virus when you have an active lesion although there is some evidence that this virus can spread even when there is not an active lesion. to make your life simple don't kiss anyone when you have a herpes lesion on your lip but otherwise kiss them without guilt.
if you have the herpes simplex 1 virus in you is your saliva always infected with it? . asking so if you kiss someone are you possibly giving them herpes without an outbreak?