just found out my dog

is allergic to Penicillin

i got her desexed today! they told me its extremely rare for a dog to be   nawww

anyone elses dog allergic?

Our one dog is allergic to the rabies shot. It was his first time that he got it and he broke out, was itchy, lethargic, had hives bad, was red, had trouble breathing. The vet told us to give him Benadryl and it helped him. He's better now.