Dog ate chocolate?

ask a vet

Allergic reaction to vaccines.

Species: Dog
Breed: Pug
Age: 5-8 years
He just got all his shots this morning and has been vomiting since and his face is now swollen. My other pug had the swelling happen when she had her shots, but she didn't puke. Can I give him 25 mg of benadryl to take down the swelling? I would like to but I don't want his throat to swell up or him to stop breathing or something. Please help. Thank you.


Online vet, Dr. Marie

Dr. Marie replied:

Dogs certainly can have an allergic reaction to vaccines.

If this is a mild reaction then most vets will recommend giving benadryl. The dose is 1 mg/lb. So, if your dog weighed 25 pounds then one tablet would be good.

If you are seeing any of the following symptoms then you should head back to the vet immediately:
  • Pale gums

  • Difficulty breathing

  • If the dog is extremely uncomfortable



Some allergic reactions can be life threatening, so if you are unsure then it is best to call your vet right away.

Dr. Marie.

---This question was asked in our Ask A Vet For Free section.---


Do you have a pet website? Interested in learning more about SEO for Wix?


Check out our dog age calculator and cat age calculator.

Want to receive pet coupons, vet advice and info on new pet products in your inbox?

* indicates required

We'll only send you great stuff, never spam. Unsubscribe any time.

Disclaimer: Although Dr. Marie is a qualified veterinarian, the information found on this site is not meant to replace the advice of your own veterinarian. AskAVetQuestion.com and Dr. Marie do not accept any responsibility for any loss, damage, injury, death, or disease which may arise from reliance on information contained on this site. Do not use information found on this site for diagnosing or treating your pet. Anything you read here is for information only.

Search for similar questions:

ask a vet

Popular questions...

Cracked Toe Nail. My dog cracked his nail horizontally at the base of the nail. Is there something I... (10575 views)

Irregular heart rhythm. MY 12 year old lurcher ran into a car and broke a leg and a few ribs he is in... (8941 views)

Yellow liquid at tip of penis. Every once in a while (maybe twice a week) he will have a yellowish white dot of... (19747 views)

Lump on jaw. OK...my cat has a lump on her neck/jaw. One vet has told me it was an... (27037 views)

Itchy dog. Hi Dr Marie, Recall my email a couple of weeks ago about Max and his... (8458 views)

Facial lymph nodes and teething. Hi Dr. Marie, After a lot of investigating w/ my own regular vet (very... (12296 views)

Metronidazole side effects? My Dog had a surgery Dec 9. The Doctor removed a tumor from his small intestine. He... (15656 views)

Coughing dog. I have two very healthy Min Pins. Well I had two healthy dogs. Last weekend we... (5222 views)

How to get cat to lose weight? Cinder is about 16-18 lbs. She has a large frame for a Female, per the vet, but my... (5010 views)

Testosterone injection for cryptorchidism. I have a Mini French Poodle and he is about 1 year old and he only has one testicle... (7871 views)

See all questions...

Dr. MarieDr. Marie is a veterinarian who practices in a busy animal hospital in Ottawa, Ontario. She created Ask A Vet Question as a resource for good, accurate veterinary advice online. Dr. Marie treats dogs, cats, hamsters, guinea pigs, and rats. She has been a vet since 1999.

Is an online vet visit just as good as a trip to your veterinarian? No! But, many times, asking an online veterinarian a question can help save you money. While Dr. Marie can't officially diagnose your pet or prescribe medications, she can often advise you on whether a vet visit is necessary. You can also ask Dr. Marie for a second opinion on your pet's condition.