A blood test
HSV can also be identified with a blood test. The examination searches for anti-virus antibodies. This test only reveals that you have the virus; it does not reveal the cause of your infection or the length of your infection.
Additionally, a positive result from the blood test might not come back right away. After your initial outbreak, your results can be negative.
Additionally, you can use a Polymerase Chain Reaction (PCR) [3] test to examine your DNA and determine whether you have HSV-1 or HSV-2 in your body.