Is it labial herpes? If not, what?

I am 30 and have never had herpes before.

This week, my lips were painful, dry and chapped for a few days due to a normal cold - this has happened to me before. Then this sore appeared literally overnight on my upper lip. No previous small blisters or anything, just overall dry chaffing lips, and overnight a sore the size of a pinky-toe nail.

Hurts, kind of a burning, throbbing sensation. Not a pustule, no liquid inside. From the first day it was covered in a thin whitish film, which peels off on its own every time I shower, exposing kind of raw skin. Then white film comes back till the next shower. No crust though.

I am now in my fourth day and it hurts significantly less, and it just looks like a small patch of raw skin healing. Have been putting zinc on it twice a day.

Could this be labial herpes? I am confused by descriptions I find online. If not, any other ideas?

Thanks all in advance!