How can you know for sure that have no herpes?

It is not possible to know for sure that you do not have herpes, as it is possible to have the virus without showing any symptoms. However, there are several tests that can be used to detect the virus, including:

* Blood tests: These tests can detect antibodies to the herpes virus.

* Swabs: These tests can be used to collect cells from the affected area, which can then be tested for the virus.

* Polymerase chain reaction (PCR) tests: These tests can detect the virus's DNA.

It is important to note that even if you test negative for herpes, it is still possible that you could have the virus, as the tests are not always sensitive enough to detect all cases. If you are concerned that you may have herpes, it is important to talk to your doctor for more information and testing.