u cant neither ask her go to the doctors or use TROJAN MAN!!
People with herpes donÂ´t always exhibit symptoms so you canÂ´t tell by looking at her. You can even contract it even though you use a condom.
wish I were
You can't, that's why you have to protect yourself! That's why it spreads so fast! Protect yourself, there is no cure for herpes!!!
It's unlikely you'd be able to tell just from looking at her unless she has a current sore (and even then, you might not be able to see it). Herpes can be transmitted even before an active sore has fully emerged, so you can't depend on visual cues to protect yourself. Wear a condom!! Or, better yet, get tested for STDs yourself and have your partner also get tested before you are intimate.