Can hives be cured?

I only developed hives after getting the Sinovac vaccine, not sure if there's a direct connection, but it started after the vaccination.

I've seen many doctors, but they couldn't identify the allergen. The doctors said it's an immune system problem.

Initially, I took loratadine, but developed tolerance. In the past year, I also took cetirizine, but it no longer works. The frequency of outbreaks is increasing.

I've purchased over ten boxes in the past six months. I don't know if there are any side effects.

It's so painful~