A full course of allergy shots typically costs between $3,000 and $6,000 or more over three to five years, depending on your insurance copays, how many injections you get per visit, and how long your treatment lasts. That range covers just the injections themselves. Factor in the initial allergy testing and office visits, and the total climbs higher.
Cost Per Visit
Most insurance plans cover allergy shots (subcutaneous immunotherapy) but charge a copay for each injection. Those copays run up to $20 per shot. Here’s where it gets tricky: many allergists split your treatment into two separate serums to keep certain allergens from degrading each other. That means two shots per visit, and potentially two copays, pushing your per-visit cost to $40.
Without insurance, the numbers shift significantly. Each injection visit typically includes an administration fee on top of the cost of the allergen extract itself. The extract vials, which contain the customized mix of allergens your body is being trained to tolerate, need to be prepared and replaced periodically throughout treatment. Out-of-pocket costs for uninsured patients vary widely by clinic and region, but you should expect to pay substantially more than a simple copay per visit.
The Treatment Timeline
Allergy shots aren’t a quick fix. The treatment has two distinct phases, and the frequency of your visits (and therefore your costs) changes between them.
During the buildup phase, you visit the clinic one to three times per week for gradually increasing doses. A standard buildup protocol takes about 22 weeks and averages roughly 27 visits to reach your target dose. Faster options exist: cluster protocols get there in around 20 visits, and rush protocols in about 16 visits, though these involve multiple shots per session.
Once you hit your maintenance dose, visits drop to roughly once a month. The maintenance phase continues for three to five years total. This is what makes allergy shots effective long-term, but it also means years of consistent office visits.
Total Cost Over Three to Five Years
The math is straightforward but sobering. At $20 per shot, once a week, for three years, you’re looking at about $3,120 in copays alone. If your allergist uses two serums per visit (which is common), that doubles to around $6,240 over three years. Extend treatment to five years and the numbers grow proportionally.
These figures only account for the injections. You’ll also pay for:
- Initial allergy testing: Skin prick tests run $100 to $300 depending on how many allergens are tested. Blood tests (IgE panels) cost $200 to $500.
- Office consultations: Your initial evaluation and periodic follow-ups with the allergist carry their own copays or fees.
- Allergen extract preparation: The custom vials of allergen serum used in your injections are a separate charge, typically billed every few months when new vials are mixed.
A realistic all-in estimate for a three-year course with insurance is $4,000 to $8,000 out of pocket when you include testing, consultations, and injection copays.
What Insurance Typically Covers
Most major health insurance plans cover allergy immunotherapy, including the testing, the allergen extracts, and the injections. What you actually pay depends on your plan’s copay structure, whether you’ve met your deductible, and how your plan categorizes specialist visits versus injection-only appointments.
Some plans charge a specialist copay for every injection visit, while others have a lower copay for “nurse-only” injection appointments where you don’t see the doctor. It’s worth calling your insurer before starting treatment to ask specifically how allergy injection visits are billed, because the difference between a $15 and $40 copay adds up to thousands of dollars over the course of treatment. Also confirm whether each serum injection counts as a separate billable event, since two shots per visit could mean two copays.
Sublingual Tablets as an Alternative
Sublingual immunotherapy tablets (placed under the tongue at home) are an alternative to shots for certain allergens like grass pollen, ragweed, and dust mites. The cost structure is different: you pay more for the prescription itself but less in office visits, since you take the tablets daily at home after your first dose is supervised in the clinic.
During the first three years of treatment, prescription costs for sublingual tablets tend to be higher than for traditional shots. However, the savings on office visits and administration fees can partially offset that gap. Hospitalization costs also tend to be lower with sublingual tablets. For people whose schedules make weekly or monthly clinic visits difficult, the convenience factor may justify the higher prescription price.
Hidden Costs to Watch For
The sticker price of allergy shots doesn’t capture everything. You’re required to wait in the clinic for 20 to 30 minutes after each injection so staff can monitor you for allergic reactions. That means each visit takes 45 minutes to an hour when you factor in check-in and the wait. Over hundreds of visits, the lost work time and transportation costs are real expenses that don’t show up on a bill.
There’s also the cost of stopping too early. Allergy shots work by gradually retraining your immune system, and the benefits are tied to completing the full course. If you quit after a year or two because of cost or inconvenience, you may not get the lasting relief that makes the investment worthwhile. Before starting, it’s worth doing the full math on three to five years of treatment to make sure you can commit financially and logistically.