What will a doctor do for hives?

I’ve got hives all over my face. Not the welt kind, but I know what hives look like on my face..and I unfortunately have them.
It’s been 24 hours, I’ve used cold compresses and have taken benadryl. Nothing seems to be helping.
I don’t know what caused them at all. I’ve had them like this once before, and it was from using a topical acne medication that I turned out to be allergic to (benzoyl peroxide)
I haven’t put anything new on my face. I haven’t eaten anything out of the ordinary. I did wear a jacket that was in storage that I hadn’t washed. But why would it affect my face?
I don’t have health insurance, so I’d prefer not to go to the doctors. I’m doing everything I can think of, that they would suggest..but I’m not a doctor, so I don’t know if I’m missing anything.
What can I do about these hives?!