Herpes Symptoms?

I have never been sexually active or kissed anyone.

Someone has kissed me on the right cheek in the past three weeks, but that person has never had any visible symptoms of herpes.

Yesterday, a bump like a small flea bite about half a centimeter showed up, but I have had those show up randomly and disappear within the hour. Right now I have a cluster of blisters to the left of my lip where there were none yesterday. The area is not painful or itchy. The cluster looks like herpes, and I've checked on contact dermatitis, but I don't put anything on my face besides a cleanser that I've used for three years now. A nurse I know suggested it was herpes, but I'm not sure now.

What do I do?