Why a Lump Appeared After Vaccination in a Dog: How to Treat the Swelling

Planned vaccination is an important aspect of forming a healthy immune system for your pet. A small bump after vaccination in puppy and juvenile age is normal: the tissues react to the trauma from the needle and swell slightly. Sometimes, the injection is not done “with a light hand” or not in the right place, then the hardening after the vaccination can be slightly painful and take longer to resolve.

Usually, the swelling after vaccination goes away within 7-14 days if the area is not further traumatized. However, post-injection hardenings can have a different nature, more dangerous than ordinary swelling.

Bump on the withers after rabies vaccination — norm or pathology

Vaccination against rabies is extremely important. It is administered to puppies and adult pets, although it is better to do it at an early age. Only healthy animals without worm infestations are allowed to be vaccinated. On the day of vaccination, the temperature is measured, and food is restricted. A female in heat is not a contraindication, but it is advisable to postpone the procedure until the resting period.

The injection site should be kept dry. This is a micro-wound that should not be exposed to dirt and pathogenic bacteria. Rabies vaccination is done on the withers. A bump is considered normal if:

• it does not increase in size;
• it is moderately painful;
• it disappears within 7-14 days.

Temporary complications after the procedure may include: a single refusal to eat, vomiting or diarrhea; a temperature rise up to 39.5; lethargy and drowsiness on the day of vaccination. It is also recommended not to leave the clinic for 15-20 minutes after the injection: this is the time during which an allergic reaction may develop.

Dog after rabies vaccination: rehabilitation rules

At home, provide rest and constant access to water. It is better to reduce physical activity and keep the pet away from potentially infected animals: the vaccine is effective only for 21 days after administration. For about 2-3 weeks, the animal should not be bathed.

Possible complications after vaccination in dogs

Worrisome symptoms during the recovery period include:

• severe pain;
• vomiting, gastrointestinal disturbances;
• significant temperature rise (more than 1 degree);
• seizures;
• cyanosis of the mucous membranes;
• redness of the ears, eyes;
• shortness of breath;
• discharge of mucus from the eyes, nose.

If these symptoms occur, consult a veterinarian immediately. They indicate individual intolerance, allergy, or a poor-quality vaccine. The label from the vial must be included or glued into the veterinary passport with a note about the procedure.

Growing tumor after dog vaccination

There is a rather rare disease — scar formation in connective tissue with pathologies. A regular scar forms at the site of the wound, which over time increases in size, not limited to the damaged area.

A neoplasm arises. It is benign but can cause discomfort over time. Before removal, a tissue analysis (X-ray, ultrasound, biopsy) is indicated. Performing any interventions with such a pathology is risky, as scars after excision may reform.

Treatment of the bump after vaccination

Specific therapy is not required; the formation resolves on its own. To reduce discomfort, the injection site is treated once a day with:

• Levomekol.
• Heparin.
• Menovazin.

More frequent treatment is not advisable as it may lead to the wound softening. One pain relief tablet can be given. If the bump becomes inflamed, with yellowish and foul-smelling discharge, an infectious process has begun. The area should be treated with antiseptics and antibacterial ointments (local antibiotics).

Frequently Asked Questions

Why did my dog develop a bump after vaccination?

A small bump is a normal reaction of the body to the vaccine. It is related to tissue trauma from the needle and usually resolves within 7-14 days.

When should I consult a veterinarian after vaccination?

If the bump increases in size, causes severe pain, or is accompanied by other alarming symptoms, you should consult a veterinarian immediately.

How to care for a dog after rabies vaccination?

Provide your pet with rest, access to water, and limit physical activity. Do not bathe the dog for 2-3 weeks after vaccination.

What should I do if my dog shows symptoms after vaccination?

If vomiting, elevated temperature, or other alarming signs occur, consult a veterinarian immediately for an assessment.

Can I vaccinate my dog if she is in heat?

Heat is not a contraindication for vaccination, but it is better to postpone the procedure until the resting period to minimize stress.