How Many Allergy Shots? Per Visit, Per Week, Per Year & Per Course
How many allergy shots depends on which time horizon you mean. Per visit: typically 1, or 2 for polysensitized patients. Per week during build-up: 1-4 depending on protocol. Per year in year one: 50-80 individual injections. Per full 3-5 year course: 96-380+ total injections. Each time horizon gets a different answer, and each answer varies based on protocol choice, allergen count, and treatment duration.
5 peer-reviewed sources
Allergy shot counts: 1-2 per visit, 1-4 per week during build-up, 50-80 per year in year one, and 96-380+ over a full 3-5 year course. The exact count depends on your allergen profile and chosen protocol.
Answering Every Interpretation of 'How Many Allergy Shots'
The question 'how many allergy shots' is genuinely ambiguous — it could mean per visit, per week, per year, or across the entire course. Each interpretation has a different answer, and knowing all of them gives you a complete picture of the treatment commitment.
Per visit: Most patients receive 1 injection per visit. Patients with multiple allergen sensitivities that cannot be safely mixed in one vial receive 2 injections — one in each arm — per visit. Cluster protocols may deliver 3 injections per visit; rush protocols up to 8 per session-day.
Per week during build-up: At 1-2 visits per week with 1-2 injections per visit, patients may receive 1-4 individual injections per week during build-up.
Per year: Year one is the most injection-intensive. Build-up at 1-2 visits/week for 3-6 months, then transition to monthly maintenance — totaling approximately 50-80 individual injections in year one. Years 2-5 average 12-52 injections per year depending on maintenance interval and injection count per visit.
Per full course: 96-380+ individual injections across a 3-5 year course. The wide range reflects protocol choice, maintenance interval, treatment duration, and allergen count.
Knowing how many allergen sensitivities you have — monosensitized vs. polysensitized — directly determines whether you will receive 1 or 2 injections per visit. Services like Curex provide at-home allergy test kits covering 40+ allergens, giving you and your allergist the sensitization profile needed to estimate your specific injection count before you start.
Per visit: 1-2 injections. Per year (year 1): 50-80 injections. Per full course: 96-380+ injections. The answer to 'how many' depends entirely on which time horizon the question is addressing.
Ready to skip the surprise bills?
See if at-home allergy shots fit your allergies — a 2-minute quiz, designed by board-certified allergists, with flat monthly pricing and no clinic visits.
- 4.8/5Patient rating
- $129/moFlat pricing
- 50K+Patients treated
- HSA/FSAEligible
Injection Counts Across All Time Horizons
The following breakdown covers each 'how many' interpretation across the phases of treatment. These are ranges — your specific count will be calculated by your allergist based on your allergen panel and chosen protocol.
Monosensitized patients receive 1 injection per visit. Polysensitized patients with incompatible extracts receive 2 injections per visit (one per arm). During build-up at 1-2 visits per week, weekly injection counts range from 1 to 4. Cluster protocol visits deliver 2-3 injections per visit; rush protocol sessions deliver 4-8 per day. Allergen mixing compatibility determines per-visit count — some practices consolidate multiple allergens in one vial, reducing counts.
Year one is the most intensive: approximately 24-60 build-up injections (depending on weekly vs. biweekly visits and 1 vs. 2 shots per visit) plus 12-24 maintenance injections during the transition period = 50-80 total. In years 2-5 at monthly maintenance with 1 injection per visit: approximately 12-13 injections per year. At biweekly maintenance with 2 injections per visit: approximately 52 injections per year.
A 3-year course with monthly maintenance and 1 injection per visit: approximately 99-108 total injections. A 5-year course with monthly maintenance and 1 shot per visit: approximately 125-138. A 5-year course with biweekly maintenance and 2 shots per visit (polysensitized patient): approximately 320-380+. After the final injection, no further shots are required and disease-modifying benefits last 3-12 years post-treatment.
Same proven results. No clinic visits.
Curex's at-home allergy shots deliver the same allergen desensitization as clinic SCIT — for a flat $129/month, with no clinic visits and no facility fees.
See if at-home shots are right for youClinic Allergy Shots vs. At-Home Allergy Shots: Total Treatment Events
For patients who want disease-modifying immunotherapy but dread the clinic trips behind every injection, the same shots can be self-administered at home — the injection count is identical, but none of it requires a clinic appointment.
| Treatment | Efficacy | Duration | Cost (5yr) | Convenience | Safety |
|---|---|---|---|---|---|
At-Home Allergy Shots (SCIT)Best | Disease-modifying; 33-85% symptom reduction; benefits last 3-12 years after stopping | 3-5 years then discontinue | $3,000-$10,000+ | Self-administered at home with Curex; 1-2x/week build-up then monthly maintenance; brief self-observation after each dose | 0.1-0.2% systemic reaction rate per injection; first dose and every dose change supervised live over Zoom, with a prescribed epinephrine auto-injector on hand |
Sublingual Drops (SLIT) | Comparable disease modification for many allergens; significant symptom reduction in Cochrane reviews | 3-5 years then discontinue | $2,340-$3,500 | Daily drops at home; zero clinic visits after initial consult; 30 seconds per dose | Local oral reactions most common; systemic reactions rare; no post-dose observation required |
- Efficacy
- Disease-modifying; 33-85% symptom reduction; benefits last 3-12 years after stopping
- Duration
- 3-5 years then discontinue
- Cost (5yr)
- $3,000-$10,000+
- Convenience
- Self-administered at home with Curex; 1-2x/week build-up then monthly maintenance; brief self-observation after each dose
- Safety
- 0.1-0.2% systemic reaction rate per injection; first dose and every dose change supervised live over Zoom, with a prescribed epinephrine auto-injector on hand
- Efficacy
- Comparable disease modification for many allergens; significant symptom reduction in Cochrane reviews
- Duration
- 3-5 years then discontinue
- Cost (5yr)
- $2,340-$3,500
- Convenience
- Daily drops at home; zero clinic visits after initial consult; 30 seconds per dose
- Safety
- Local oral reactions most common; systemic reactions rare; no post-dose observation required
Whatever your injection count works out to, Curex delivers every one of those shots to your home for $129/month all-inclusive — one weekly self-administered shot, with your first dose and every dose change supervised live over Zoom, so the full course never requires a clinic appointment.
See if at-home shots are right for youFrequently asked questions
How many allergy shots per visit?
Most allergy shot patients receive 1 injection per visit. Polysensitized patients — those with multiple allergen sensitivities whose extracts cannot be safely combined in a single vial — receive 2 injections per visit, one in each arm, with at least 30 minutes between injections from different vials. Cluster protocols are an exception: cluster visits deliver 2-3 escalating injections per visit, spaced 30 minutes apart. Rush protocol sessions can include 4-8 injections in a single day. Whether your allergens require 1 or 2 injections per visit depends on extract compatibility — your allergist determines this when preparing your treatment vials.
How many allergy shots per week?
During the build-up phase, most patients receive 1-2 clinic visits per week, each with 1-2 injections per visit — making the weekly injection count anywhere from 1 to 4 individual injections. Once-weekly build-up with 1 injection per visit = 1 injection per week. Twice-weekly build-up with 2 injections per visit = 4 injections per week. During maintenance, the weekly injection count drops below 1 (since maintenance visits are every 2-4 weeks): at monthly maintenance, the average is 0.25-0.33 injections per week. This dramatic decrease in weekly injection frequency is one of the defining features of transitioning from build-up to maintenance.
How many allergy shots in year one?
Year one of allergy shots typically involves approximately 50-80 individual injections. The range reflects different protocols and injection counts per visit. At once-weekly build-up with 1 injection per visit for 6 months (26 visits) plus monthly maintenance (6-7 visits for the remaining months): approximately 32-33 injections. At twice-weekly build-up with 2 injections per visit for 4 months (32 visits = 64 injections) plus monthly maintenance (7-8 visits = 7-8 injections): approximately 71-72 injections. Polysensitized patients with 2 shots per visit in all scenarios double the injection counts above.
How many allergy shots over the full course?
Over a complete 3-5 year allergy shot course, the total injection count ranges from approximately 96 to 380+ injections. A representative 3-year once-weekly conventional course with 1 injection per visit and monthly maintenance: approximately 26 build-up + 39 maintenance = 65 injections per year 1, then 12-13/year for years 2-3 = approximately 99-108 total. A 5-year biweekly maintenance course with 2 injections per visit for a polysensitized patient: approximately 60 build-up shots + 260 maintenance shots = 320+ total. These totals are reached over years, not months — context that makes the number less daunting when spread across the full treatment timeline.
Does the number of allergy shots change based on how many allergies you have?
Yes — the number of allergens you are sensitized to directly affects how many injections you receive per visit, which compounds across all time horizons. A patient sensitized to 1-2 allergens with compatible extracts receives 1 injection per visit. A patient sensitized to 5+ allergens with incompatible extract combinations may receive 2 injections per visit — doubling every count from per-visit to per-course. Some practices mix multiple allergens in one vial when extract compatibility allows, which can keep the per-visit count at 1 even for polysensitized patients. Your allergist determines vial composition at the start of treatment based on allergen compatibility data.
How many build-up allergy shots are required before maintenance?
The number of build-up allergy shots before reaching the maintenance dose depends on the protocol. Conventional once-weekly build-up: approximately 24-30 injections over 6 months. Conventional twice-weekly: approximately 48-60 injections over 3-4 months. Cluster protocol: approximately 30-60 injections over 4-8 weeks. Rush protocol: approximately 8-24 injections over 1-3 days. The number of steps in your build-up protocol is determined by how many vial concentrations your allergist uses — typically 10-20 escalating concentration levels in conventional protocols. Meaningful IgG4 blocking antibody elevation typically occurs around injection 20-30, per Shamji and Durham (JACI 2017).
How many allergy shots are given in the maintenance phase per year?
During maintenance, allergy shots are given every 2-4 weeks, generating approximately 12-26 individual injections per year at a 1-shot-per-visit rate. Monthly maintenance (every 4 weeks): approximately 13 injections per year. Biweekly maintenance (every 2 weeks): approximately 26 injections per year. Polysensitized patients with 2 injections per visit: 26-52 injections per year during maintenance. Over a 3-5 year maintenance phase, this accumulates to 39-130+ maintenance injections before the treatment course ends. Adding the build-up injections to the maintenance total gives the full-course injection count of 96-380+.
Related Articles
How Long Do Allergy Shots Take? Trial vs Reality | Curex
How long do allergy shots take to work? Trials show 12-month benefit, but only 23% complete 3 years. Real-world vs clinical data guide.
Read moreAllergy Shots: The Complete Patient Guide to SCIT | Curex
Allergy shots (SCIT) are the only FDA-recognized disease-modifying allergy treatment. Learn who qualifies, how they work, and what alternatives exist.
Read moreWhat Is Allergy Shots? Quick Definition and How It Works
What is allergy shots? SCIT trains your immune system to tolerate allergens over 3-5 years. 85-90% of patients see significant improvement.
Read moreAllergy Shot Side Effects: Per-Injection Timeline | Curex
What happens after each allergy shot? A minute-by-minute timeline from the 30-min wait to 48-hour local reactions, with safety thresholds and real data.
Read moreAllergy Immunotherapy Guide: All Options Compared | Curex
Allergy immunotherapy covers shots, tablets, drops, and OIT. Compare SCIT vs SLIT on efficacy, safety, cost, and FDA status to choose the right route.
Read moreAllergy Shots: Complete SCIT Guide for Patients | Curex
Allergy shots (SCIT) reduce symptoms by 33-85% over 3-5 years. Learn how they work, what they cost, and who qualifies for this disease-modifying treatment.
Read moreGet your allergy shots — without the clinic.
Curex's flat $129/month covers end-to-end at-home immunotherapy — a personalized serum compounded to USP <797> sterile standards, board-certified allergist oversight, and one weekly injection you give yourself at home. No clinic visits, no facility fees. HSA/FSA eligible.
$129/mo flat · No facility fees · HSA/FSA eligible · Cancel anytime
This content is for informational purposes only and does not constitute medical advice, diagnosis, or treatment. Always consult a qualified healthcare provider with questions about a medical condition. Content reviewed by board-certified allergists at Curex.