We've been giving her benadryl every 8 hrs, but nothing seems to help. everyone tells us to wait a few days before going to the vet. any topical or at home fixes for hives?
She could be irritated by something on her skin. try giving her a bath.
you should take her to the vet. would you wait if your body was covered in hives and meds dont seem to be helping? dont try to just guess at whats wrong and try quick fixes, she's relying on you to do whats best for her not for your wallet.
Did a vet tell you to give her benadryl? it could be doing more harm than anything. call your vet.
My neighbors dog had that and had him tested for allergies; the dog is allergic to everything. They did switch his food to lamb formula and that helped some. I don't know what medication the dog is on but he's on something, just don't know what or how much is costs.