Luckily, I never have had this reaction. I do give the dye free Children's Benadryl with dipenhydramine as the only ingredient at the rate of 1 mg per pound 30 to 45 minutes prior. Each teaspoon has 12.5 mg. in it so a very small amount. One milliliter (5 ml in each teaspoon) has 2.5 milligrams so be very careful. This wouldn't prevent pain just allergic reactions. I always give in the scruff of the neck wondering if giving in the leg causes more pain. I don't give the bordatella so not sure about that one. |