How Long Do Dog Vaccine Side Effects Last?

by | Last updated on January 24, 2024

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Lethargy, a slight fever, and some mild discomfort are the most common side effects pets get from vaccines. This can be characterized by your pet not acting like their usual self. This is a normal reaction to vaccinations, and the symptoms should be mild and only last

one or two days

.

How long do side effects of dog flu shot last?

How long do dog flu vaccine side effects last? Not long. While the canine flu can last for up to 3 weeks, the effects or symptoms of the dog flu vaccine usually appear and disappear after

a day or two

.

Can a dog have a reaction to a vaccine a week later?

Vaccine reactions can range from mild to severe in both dogs and cats. The immune system can have a variety of responses to vaccines, and

some allergic reactions will develop within an hour and others can be delayed and last for days

.

How can I comfort my dog after shots?

  1. Provide your pet with a warm, cosy place to lie down and rest. …
  2. Make sure that they have access to water and their favourite food, but don’t be alarmed if they are not very hungry.
  3. Avoid patting or playing with your pet as they may wish to be left alone.

Are there any side effects from puppy vaccinations?

Just as with human vaccines, mild symptoms can be ignored.

The majority of reactions are mild and short lived

. If you suspect a more severe reaction to puppy vaccines or dog vaccines, such as facial swelling, vomiting or lethargy, you should contact your veterinarian immediately.

How can I tell if my dog is having an allergic reaction to shots?

Signs can be

vomiting and/or diarrhea within the first few hours after administration of the vaccine

. Puffiness may be noted, especially around the eyes, muzzle and ears. Another potential symptom is hives, or bumps, all over the body.

Are puppies tired after vaccines?


Within the first 48 hours, it is very normal for your puppy to feel a little tired, even slightly lethargic

. It is not uncommon for there to be some swelling on the site of the injection. Your puppy may not want to eat much and you may hear it sneezing or coughing. These are all normal reactions to the vaccine.

Why is my dog shaking after vaccines?

A few may seem a little lethargic, wanting to sleep more for approximately twenty-four hours after the vaccination.

Occasionally an animal may have an allergic reaction

, with symptoms ranging from mild (shivering, shaking, perhaps vomiting) to severe (facial swelling, congestion, difficulty breathing).

How long after vaccine can dogs have reaction?

Serious Reactions to Vaccinations

The condition can occur either very soon after the vaccine is injected or

up to 48 hours after vaccination

. If any of these symptoms appear in your dog, call your vet immediately for urgent or emergency care, or contact the emergency veterinary clinic closest to you.

How long does kennel cough vaccine side effects last?

This reaction arises as a side effect of the dog’s immune system working to respond to the vaccine appropriately. These symptoms are quite normal and should only last

one or two days

.

Can dogs feel unwell after booster?


Some dogs develop mild lethargy or soreness 1 to 2 days after vaccination

. In the case of killed vaccines containing an adjuvant, lump formation may occur at the vaccination site. If this is painful or persists for more than a few weeks with no decrease in size, consult your veterinarian.

Can I walk my dog after vaccination?

To be sure your puppy is protected by his vaccinations,

continue to walk him only at home until he has received his final puppy shot, usually at about 16 to 20 weeks of age

.

Can I give my dog Benadryl after shots?

Benadryl is safe for dogs. The active ingredient, diphenhydramine, is used in veterinary formulations.

Veterinarians may recommend Benadryl to their clients whose pets have allergic reactions to vaccines or other medications

.

Does parvo vaccine side effects?

Common side effects of vaccines are

vomiting, diarrhea, swelling of the face and paws, hives, and extreme lethargy

. Most vaccines reactions happen within the first 2 hours after administration, but can be up to 24-48 hours after the vaccine.

Do dogs feel unwell after kennel cough vaccine?

Bordetella Vaccination Side Effects


Dogs receiving either type of vaccine might experience lethargy, fever or nausea, but these side effects are uncommon

. Dogs receiving the intranasal vaccine might sneeze or cough excessively for a few hours afterward.

Can puppies get sick after their first shots?

Any soreness, swelling, and tiredness from this should subside within one to two days. For intranasal vaccines,

sneezing or what looks like a mild cold can develop but should subside after a few days

.

How can you tell if puppy has a fever?

  1. Red eyes.
  2. Lethargy/lack of energy.
  3. Warm ears.
  4. Warm, dry nose.
  5. Shivering.
  6. Loss of appetite.
  7. Coughing.
  8. Vomiting.
Diane Mitchell
Author
Diane Mitchell
Diane Mitchell is an animal lover and trainer with over 15 years of experience working with a variety of animals, including dogs, cats, birds, and horses. She has worked with leading animal welfare organizations. Diane is passionate about promoting responsible pet ownership and educating pet owners on the best practices for training and caring for their furry friends.