I'm not sure what his allergies are and nose sprays won't work because he won't let me use one on him. We had an appt today, but guess who got up at 3:30 and would not go back to bed no matter what I did? Supposed to not have anything to drink or eat and what does he do? Wants food and drink so I had to cancel his appt. His behavior has been so bad anyway it was the right thing to do. He's just been so awful, I would hate for him to get labelled as a biter because of medication reactions.