Gosh, I hope your baby will get better soon! I asked my vet awhile back about an allergic reaction and what I should do in the event of one (Max gets into everything when he goes outside, and we've got fire ants and scorpions on occasion, and black widows here) and he told me that of course, I would take him to the vet, but that I could give him some Benadryl....diphenhydramine, if you want the generic stuff. He told me to use the pediatric liquid and then the amount is determined by weight. So I went to the drugstore and got a bottle of it, just to have on hand in case of emergency. I think it's a good idea to have a little emergency kit for them, so ask the vet the dose for your dog and then write it down and put it on the bottle's label, so you won't forget. Also, I read that a baking soda and water paste can help inflammations and irritations and Milk of Magnesia (only I'd be worried that the dog might lick it and then, have other problems
). Good luck with your little girl. Let us know how she's doing!