English Bull dog Puppy - Blisters around edges of mouth

by Sandra Reyes
( TX USA )

Some are near the whisker area, the dog has been very aggressive lately and barking, which is very unusual. She is being medicated for Kennel Cough with Hydrocodone and Doxy pills.

This is for sure not normal. Could this be an allergy? Some of the bumps look like they have bled a little some have a little yellow dot on top. i pulled one and the hair came off with it. It's definitely some sort of allergy, what could have caused it?

She is due for her Frontline on the 29th of Feb. I tried getting you a picture but she won't let me take one and is very aggressive.



Hi Sandra
I'm afraid I'm not a veterinarian and I really suggest that you take your pup back to your vet for another examination. This is the only way to find out for sure what is going on here.

Neither Hydrocodone or Doxycline are known to produce a side effect that is similar in any way to what you describe. An allergic reaction to one of the drugs would be more likely to produce hives or swelling, rather than blisters. But as I said, I'm not a vet, and it could be that these blisters are signs of an allergic reaction if they are definitely something that has occurred recently, and in tandem with her being medicated.

I'm concerned about her unusually aggressive behavior as this indicates that she is in pain/distressed or anxious, and you need to find out why. Again, could be due to a side effect of medication, but hydrocodone is more likely to have a sedating effect so it's curious that she is behaving more aggressively.

I wish I could help more, but you really need a professional veterinary evaluation so that you can get an accurate diagnosis.

If you'd like to get a second, professional, veterinary opinion without the cost of an additional vet visit, you can Ask A Veterinarian online right now. Your own vet should always be your first choice, but a second opinion never hurts.

I wish you the best of luck and hope that your pup is on the road to recovery soon.