Why am I just now learning about this?!

Ladies I am super angry and upset and I just want this pregnancy to end ASAP. On top of unspeakable back and hip pain I am experiencing PUPPPs and it is super painful and itchy and it is driving me insane. The bumps are the size of peas. Nothing I have tried has worked. Basically they say that the only cure is to give birth. I am 28 weeks along. So I have to go through another 10+ weeks of this. Why is there not more research on this? How come we don't know what causes it yet, beyond unproven theories? Why does nobody talk about this as a possible pregnancy symptom? Does the medical community just not care about pregnant women?

I don't want temporary relief for five minutes that all the remedies I've tried seems to give. I want legitimate relief that will last. What has worked for you?