I have been worried for 3 weeks because of a sudden breakout of small, pimple-like hives.

It has been over a month, and overnight, hives broke out all along my cheekline like an allergy.

I don't usually have any skin issues, so since this happened so suddenly, I just left it alone for now. It has shrunk a little, but it is still there. I'm not at an age where I go through hormonal upheaval, so I'm really baffled.