I have a skin crack where my outer labia meet at the top. it comes back repeatedly. haven't changed any habits. very painful! help!?

Herpetic lesion: Painful recurrent genital lesion is most like due to herpes type ii ( lesser extent type i), you need to see your doctor and have a culture of the lesion to confirm what it is, if herpes a detected, your doctor can give you a suppressive therapy with either valcyclovir, acyclovir, pencyclovir to prevent recurrence.

Vaginal fissure: Any recurrent skin abnormality (sore, crack, growth) should be checked by a doctor for possible skin cancer. Pain is your body's way of telling you that it should be checked.