Allergen-specific immunotherapy (allergy shots) is the only allergy treatment that modifies your dog's immune system to stop reacting to allergens — rather than just suppressing symptoms. It's a long-term treatment that takes 3–6 months to work but can provide lifelong relief. Allergy shots are customized based on your dog's specific allergy test results.
The cost of dog allergy shots is $30 to $100 per month, with an average of $65/month. Initial allergy testing adds $200–$400.
How Much Do Dog Allergy Shots Cost?
| Component | Cost Range | Notes |
|---|---|---|
| Allergy testing (intradermal skin test) | $200–$400 | Gold standard — performed by veterinary dermatologist |
| Allergy testing (blood test — RAST/ELISA) | $100–$250 | Less accurate but simpler — regular vet can do |
| Allergy shot formulation (custom vial) | $150–$300 | Custom-mixed based on test results — lasts 6–12 months |
| Monthly supply (subcutaneous injections at home) | $30–$100/month | Owner administers at home — no vet visits needed |
| Sublingual (under-tongue) drops alternative | $50–$120/month | Owner administers daily drops instead of injections |
Annual Cost Breakdown
| Year | Cost | What's Included |
|---|---|---|
| Year 1 (testing + treatment) | $560–$1,600 | Allergy test ($200–$400) + custom vial ($150–$300) + 12 months supply ($360–$1,200) |
| Year 2+ (ongoing) | $360–$1,200/year | Refill vials only — no retesting needed unless allergies change |
| 3-year total | $1,280–$4,000 | Testing + 3 years of treatment |
| If treatment works — may taper off after 1–3 years | $0 | Many dogs achieve lasting remission and stop treatment |
Allergy Shots vs. Other Allergy Treatments
| Factor | Allergy Shots (Immunotherapy) | Cytopoint | Apoquel (oral) | Steroids (prednisone) |
|---|---|---|---|---|
| Monthly cost | $30–$100 | $30–$100 (per injection) | $50–$100 | $10–$30 |
| Time to work | 3–6 months | 1–3 days | 4 hours | Hours |
| Modifies immune system? | Yes — can cure/desensitize | No — symptom control | No — symptom control | No — symptom control |
| Long-term safety | Excellent — safest option | Excellent | Good with monitoring | Poor — not for long-term |
| Owner administers at home? | Yes (subcutaneous injection or drops) | No — vet visit needed | Yes — daily pill | Yes — daily pill |
| May stop treatment eventually? | Yes — many dogs achieve remission | No — ongoing | No — ongoing | No — but shouldn't use long-term |
Allergy shots are the best long-term investment for dogs with year-round or severe allergies. While the upfront cost is higher (testing + formulation), the potential to achieve lasting remission means you may be able to stop treatment after 1–3 years. Other treatments must be continued indefinitely. See the full allergy treatment comparison.
How Allergy Shots Work
- •Testing: Intradermal skin test or blood test identifies which allergens your dog reacts to (pollens, molds, dust mites, etc.)
- •Formulation: A custom vial is created containing tiny amounts of your dog's specific allergens
- •Build-up phase: Injections start at very low doses and gradually increase over 2–3 months
- •Maintenance phase: Regular injections at the maintenance dose, typically every 1–2 weeks
- •Improvement: 60–70% of dogs show significant improvement within 3–6 months
- •Long-term: After 1–3 years, many dogs can taper off or stop treatment entirely