See the FAQs at the begining of the STD forum; I think those questions are answered there. If not, search the other message strings. The bottom line is that if your partner probably is minimally infectious for you, perhaps not at all. You most likely don't need to take any precautions at all.
But yes, if you have a blood test for HSV-1 and it is positive, you would know you couldn't catch if from your husband even if you tried.
Good luck-- HHH, MD
In the second sentence of my response, "if" is a typo; should read "The bottom line is that your partner probably is minimally infectious...."
HHH, MD