The first outbreak usually lasts about 2 weeks. The sores will eventually scab over and heal without scarring.
Unless you have symptoms there is no test for genital herpes.
After you’ve been infected, the virus remains dormant (inactive) most of the time. However, certain triggers can reactivate the virus, causing the blisters to develop again. When this happens, the blisters are usually smaller, less painful, and fewer than the first outbreak.