Is This Herpes
It looks like a herpetic infection but could also be a reactive ulcer or something we call an apthous ulcer which is reactive and due to trauma, heat, or stress. Typically it affects the mouth, but there are other reactive ulcers that can affect the genital region. You should see a dermatologist immediately when you have the signs and symptoms you are describing because the only way to diagnose this properly is by skin biopsy and/or viral culture. Blood tests are not reliable. Also, you should refrain from any sexual contact or additional trauma to the area when you have an out break. I wish you the best of luck, Dr. Emer.