Some people say during allergy season it’s okay to give your dog a benadryl or a half, I assume depending on the dog’s size. It always seems like he is more itchy, sneezy and licks himself a lot in the hotter months so they said it was allergies.
My dog was just at the vet and is on current treatment for itch and sneezing relief AND they gave him something else similar to benadryl but was very expensive. I have since ran out of the stuff similar to benadryl. He is also flea free, on regular treatment with advantage.
He is 15 lbs so should I just give a half if it’s okay?
My aunt just gave her dog benadryl today when she was stung by wasps (which I guess happens frequently where they live, they have nests in the ground and the dog gets into them and gets stung). Even though she did it and says its okay I want to hear what others think.

I have 3 dogs with same problem, it looks like. They are all on the Advantage flea and tick drops. So, it can’t be fleas. The areas are so itchy that they whine, they can’t chew fast enough. If not Benadryl, what do you suggest?