Weekly allergy shots typically cost between $20 and $40 per visit with insurance, adding up to roughly $1,000 to $4,000 per year depending on your plan, your allergist, and how many injections you get per session. Without insurance, costs run higher, and the total financial commitment stretches over three to five years of treatment.
What You’ll Pay Per Visit
The per-visit cost of allergy shots breaks down into two separate charges: the serum itself (the custom-mixed allergen extract) and the administration fee for actually giving you the injection. These are billed under different codes, which means your insurance may apply a copay to each one separately.
Most insurance plans charge a copay of up to $20 per injection. But here’s where costs can quietly double: many allergists split your treatment into two separate serums to keep certain allergens from degrading each other. If you’re getting two shots per visit, you could be paying two copays, bringing your weekly cost to $40. Over a full year of weekly visits, that’s the difference between roughly $1,040 and $2,080 out of pocket in copays alone.
The Full Cost Over Three to Five Years
Allergy shots aren’t a short-term treatment. The process has two phases. During the buildup phase, you go in once or twice a week for several months while your allergist gradually increases the dose. Once you reach your target dose, you shift to the maintenance phase, where visits drop to about once every four weeks. Most people stay on maintenance injections for three to five years.
Cleveland Clinic estimates the overall cost at $1,000 to $4,000 per year, with wide variation based on your location, provider, and insurance. For someone paying $40 per weekly visit during buildup and then $40 per monthly visit during maintenance, the three-year minimum looks something like this:
- Buildup phase (roughly 6 months of weekly visits): $1,040 to $2,080 in copays
- Maintenance phase (2.5+ years of monthly visits): $1,200 to $2,400 in copays
- Three-year copay total: roughly $2,200 to $4,500, possibly more with two-shot sessions
The American Academy of Otolaryngic Allergy calculates that even at the lower end, someone paying $20 per shot weekly for three years spends at least $3,120. With two shots per visit, that figure jumps to $6,240 over the same period.
Costs Before Treatment Starts
Before your allergist can mix your serum, you need diagnostic testing to identify exactly what you’re allergic to. This is an upfront cost that’s easy to overlook. Based on Medicare claims data, a skin prick test averages around $247 per patient, while a blood-based allergy test runs about $161. If your allergist uses skin prick testing combined with intradermal testing (a deeper needle test for borderline results), the average climbs to around $401. These figures reflect what Medicare pays, so your actual cost will depend on your insurance and whether you’ve met your deductible.
What Insurance Typically Covers
Most PPO plans cover between 60% and 100% of allergy immunotherapy costs. Weekly copays across different plans range from $0 to $50, and deductibles range from $0 to $7,000. That’s an enormous spread, which is why two people getting the same treatment at the same clinic can have very different bills. Medicare covers allergy shots at a flat 80%, costing the insurer about $807 per year of therapy.
If you have a high-deductible health plan, you’ll likely pay the full negotiated rate for each visit until you hit your deductible. After that, your plan’s coinsurance kicks in. This makes the first year of treatment, when visits are most frequent, the most expensive year out of pocket.
Using HSA or FSA Funds
Allergy shots, the serum preparation, allergy testing, and allergist office visits all qualify as eligible expenses under both Health Savings Accounts and Flexible Spending Accounts. You can pay with your HSA or FSA debit card at the time of service or submit receipts for reimbursement. If you’re on a high-deductible plan and facing significant upfront costs during the buildup phase, setting aside pre-tax dollars in an HSA or FSA can meaningfully reduce your effective cost.
How Allergy Drops Compare in Cost
Sublingual immunotherapy, where you take allergen drops or tablets under your tongue at home, is the main alternative to shots. The drops themselves cost between $500 and $2,100 per year depending on the practice and how many allergens are being treated. That sounds comparable to shots, but there’s a catch: most insurance plans don’t cover sublingual therapy, so the entire cost comes out of pocket.
Shots, on the other hand, are widely covered by insurance, making them cheaper for most people on paper. But shots carry hidden indirect costs that drops don’t. Every weekly visit means time off work, travel to the clinic, and a required 20- to 30-minute wait after each injection for monitoring. When researchers factor in lost productivity and travel expenses, the cost gap between shots and drops narrows significantly, especially for people with high copays or high-deductible plans. Sublingual drops are HSA and FSA eligible, which helps offset the lack of insurance coverage.
Expenses That Are Easy to Miss
The sticker price of allergy shots rarely captures the full financial picture. A few costs that tend to surprise people:
- Two-shot sessions: If your allergist uses two separate serum vials, your copay may double for each visit without any warning on your first bill.
- New serum vials: Your allergen extract has a shelf life. You’ll need new vials mixed periodically, and each preparation carries its own charge.
- Time costs: Weekly clinic visits during the buildup phase mean months of scheduling around appointments, plus the mandatory post-injection observation period. For hourly workers or people without paid time off, this is a real financial hit.
- Retesting: Some allergists retest after a few years of treatment to adjust your serum, adding another round of testing fees.
Before starting treatment, ask your allergist’s billing office specifically whether you’ll receive one or two injections per session, what your insurance will be billed for each visit, and whether there’s a separate charge for serum preparation. Getting those numbers upfront lets you budget accurately instead of discovering costs after you’re already committed to the process.