I’m glad to hear Pony seems to be okay. I think there is Banamine paste available - you might check sometime with your vet about just having some on hand. It doesn’t work as fast as the shots but it does work.
I do have some on hand. I asked him about it on the phone, he said not to give it then, because oral doesn’t work fast enough, but it would prevent him from being able to give her the shot.