Allergy testing identifies what's causing your dog's itching, skin infections, and ear problems. There are two main types of allergy tests for dogs: intradermal skin testing (the gold standard) and blood testing (RAST/ELISA). Food allergies require a different approach — an elimination diet trial.
The average cost of dog allergy testing is $250, with most owners paying between $100 and $400 depending on the test type.
Dog Allergy Test Cost by Type
| Test Type | Cost Range | Average | What It Tests |
|---|---|---|---|
| Intradermal skin test (gold standard) | $200–$400 | $300 | Environmental allergens — pollens, molds, dust mites |
| Blood test (RAST/ELISA) | $100–$250 | $175 | Environmental allergens — less accurate but simpler |
| Food elimination diet trial | $480–$960 | $700 | Food allergies — 8–12 weeks prescription diet |
| Combo (skin + blood test) | $250–$500 | $375 | Both tests for comprehensive allergy identification |
| At-home mail-in allergy test | $80–$200 | $150 | Convenient but less reliable — vet supervision recommended |
Cost Breakdown — Intradermal Skin Test
| Component | Cost |
|---|---|
| Dermatology consultation | $100–$200 |
| Sedation (light — keeps dog still) | $50–$100 |
| Allergen panel (60+ allergens injected) | $150–$300 |
| Interpretation by dermatologist | Included |
| Total | $300–$600 |
Which Allergy Test Is Best?
| Factor | Intradermal Skin Test | Blood Test (RAST/ELISA) | Food Elimination Diet |
|---|---|---|---|
| Cost | $200–$400 | $100–$250 | $480–$960 (diet cost) |
| Accuracy | Highest (gold standard) | Good but less accurate | Only definitive test for food allergy |
| Sedation needed? | Yes (light) | No (blood draw) | No |
| Who performs it? | Veterinary dermatologist | Any vet (blood draw) | Owner at home |
| Tests for | Environmental allergies | Environmental allergies | Food allergies |
| Time for results | Same day (read in 15 min) | 1–2 weeks (lab processing) | 8–12 weeks (diet trial) |
| Leads to immunotherapy? | Yes — direct formulation | Yes — formulation from results | N/A — diet management |
Important: Blood and skin tests only identify environmental allergies. They cannot diagnose food allergies. The only definitive test for food allergy is an 8–12 week elimination diet using a prescription hydrolyzed protein diet. Many dogs have both environmental and food allergies, so both types of testing may be needed.
Why Test for Allergies?
Without testing, your dog is stuck on lifelong symptom management — Cytopoint, Apoquel, or steroids that control itching but don't address the cause. Allergy testing identifies specific triggers so your vet can create custom immunotherapy (allergy shots) that desensitize your dog's immune system. About 60–70% of dogs on immunotherapy show significant improvement, and many can eventually stop treatment entirely. See our complete dog skin allergy treatment cost guide.
Frequently Asked Questions
How much does dog allergy testing cost?
Dog allergy testing costs $100 to $400, with an average of $250. Intradermal skin test (gold standard) costs $200–$400. Blood test (RAST/ELISA) costs $100–$250. Food elimination diet trial costs $480–$960 (cost of prescription diet for 8–12 weeks). At-home mail-in tests cost $80–$200 but are less reliable.
Does pet insurance cover allergy testing?
Yes, most pet insurance covers allergy testing — intradermal skin test, blood test, and dermatology consultation — when recommended by a vet. Reimbursement is 70–90% after your deductible. Prescription diet for food trials may also be covered if medically necessary.
At-home dog allergy tests — are they worth it?
At-home mail-in tests ($80–$200) use hair or saliva samples. They're convenient but less accurate than vet-administered tests and can produce false positives. For accurate results that lead to effective treatment (immunotherapy), see a veterinary dermatologist for intradermal skin testing or blood testing through your vet.
Can a blood test diagnose food allergies in dogs?
No. Blood allergy tests are for environmental allergies only. Food allergies cannot be reliably diagnosed by blood or skin testing in dogs. The only definitive test is an 8–12 week elimination diet using a prescription hydrolyzed protein diet ($480–$960 in diet costs). If symptoms resolve on the diet and return when original food is reintroduced, food allergy is confirmed.