Hi, thanks for using healthcare magic
The sensitivity for herpes
blood tests range from 91 to 99 %, the specifity is between 92 to 95% . High sensitivity and specifiity means that there are few falsely negative and falsely positive results.
If you've had repeated results that are negative then it is unlikely that you have herpes.
If you wish you can repeat the test to see if infection occurred since you were last tested, but with this highly accurate test, negative usually means negative.
I hope this helps