How Often Do You Get Allergy Shots? Full Schedule Explained
Allergy shots follow a two-phase schedule: a build-up phase of 1-2 injections per week for 3-6 months, followed by a maintenance phase of one injection every 2-4 weeks for 3-5 years. Traditionally that meant 50-60 clinic visits in year one alone — a 2013 JACI study found the average SCIT patient completes 82 visits over 3.4 years. With an at-home program such as Curex, eligible patients self-administer the same shots on the same schedule, keeping the protocol without the clinic trips.
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During build-up you get allergy shots 1-2 times per week for 3-6 months. Once you reach the maintenance dose, visits drop to once every 2-4 weeks for 3-5 years.
The Complete Allergy Shot Schedule: From First Injection to Year Five
Allergy shots follow a well-defined two-phase protocol that spans 3-5 years from start to finish. In the build-up phase — the first 3-6 months — you get one injection (or two if treating multiple allergen groups) 1-2 times per week, each followed by a post-injection observation period, with the dose increasing every time until your immune system reaches a target maintenance level.
Once you hit the maintenance dose — typically around week 16-24 — the dosing frequency drops significantly. Most patients transition to one injection every 2-4 weeks. Many allergists settle on monthly dosing for adults because research shows monthly maintenance is as effective as biweekly for most patients. Children sometimes receive injections every 2-3 weeks for closer monitoring.
In year one, the math adds up to roughly 50-60 doses total: approximately 24-30 weekly build-up doses, then a gradual transition to monthly maintenance. Years 2-5 average 12-26 doses per year depending on your specific interval. The total across a complete 3-5 year course: approximately 168-380 injections. Traditionally each of those was a clinic visit, but the same subcutaneous immunotherapy can now be self-administered at home through a program such as Curex for $129/month all-inclusive, with your first dose and every dose change supervised live over Zoom — keeping this exact schedule without the office trips.
Before committing to this schedule, identifying your specific IgE triggers is the essential first step. Services like Curex offer at-home allergy test kits covering 40+ allergens, with results in about a week — so you and your allergist can plan exactly which allergens your shot regimen will address.
Year one typically requires 50-60 clinic visits; years 2-5 drop to 12-26 visits per year as you enter monthly maintenance. The total investment across 3-5 years is 168-380 injections.
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Month-by-Month: What Your Allergy Shot Schedule Looks Like
The allergy shot schedule is front-loaded — the most intensive period is the first 6 months. After that, the schedule lightens considerably. Here is what each phase looks like in practice, including realistic visit counts so you can plan your calendar from day one.
You receive injections 1-2 times weekly, with each dose slightly higher than the last. Most allergists using a conventional protocol increase concentrations across 10-20 vials over 24-30 visits. Each appointment runs about 45-60 minutes including the required 30-minute post-injection observation. A seasonal dose adjustment — reducing the allergen dose by 25-50% during peak pollen season — is common for relevant aeroallergens.
Once you reach the target maintenance dose, your allergist spaces injections to every 2-4 weeks. Most adults settle into a monthly schedule (every 4 weeks). Some patients — particularly children or those with suboptimal early response — continue on every 2-3 weeks. Research shows no significant difference in symptom outcomes between biweekly and monthly maintenance for patients who are stable on the maintenance dose.
Most patients notice meaningful symptom improvement by 3-6 months into treatment — around the time maintenance begins. Full benefit typically peaks after 12-18 months on maintenance. At the 3-5 year mark, your allergist will assess whether to discontinue. Studies show benefits persist for 3-12 years after stopping a complete course, meaning the schedule commitment has long-lasting payoff.
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 youAllergy Shots vs. Other Treatments: Frequency Compared
Understanding how allergy shot frequency compares to other treatment options helps patients make an informed decision. The key distinction: SCIT requires the most visits upfront but is the only treatment with a defined end date and lasting disease modification.
| Treatment | Efficacy | Duration | Cost (5yr) | Convenience | Safety |
|---|---|---|---|---|---|
At-Home Allergy Shots (SCIT)Best | Reduces symptoms by 33-85% depending on allergen; disease modification lasts 3-12 years post-treatment | 3-5 years total | $3,000-$10,000+ | Self-administered at home with Curex; same 50-60 year-one then 12-26/year dose frequency, no clinic trips and a 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 confirmed on hand |
Sublingual Drops (SLIT) | Comparable disease modification to SCIT for many allergens; meta-analyses show significant symptom reduction | 3-5 years total | $2,340-$3,500 | Daily drops at home; zero clinic visits after initial consultation; no needles | Local oral reactions most common; systemic reactions rare; no in-office wait required |
Antihistamines (OTC) | Symptom suppression only; no disease modification; symptoms return within 24 hours of stopping | Indefinitely — no defined end date | $600-$1,800 | Once daily pill; no clinic visits; available without prescription | Generally well-tolerated; sedation with first-generation antihistamines |
Nasal Corticosteroids | Effective for nasal congestion and rhinitis; no disease modification; requires daily use | Indefinitely | $500-$2,000 | 1-2 sprays daily; no clinic visits required | Generally safe; local nasal dryness and epistaxis are common |
- Efficacy
- Reduces symptoms by 33-85% depending on allergen; disease modification lasts 3-12 years post-treatment
- Duration
- 3-5 years total
- Cost (5yr)
- $3,000-$10,000+
- Convenience
- Self-administered at home with Curex; same 50-60 year-one then 12-26/year dose frequency, no clinic trips and a 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 confirmed on hand
- Efficacy
- Comparable disease modification to SCIT for many allergens; meta-analyses show significant symptom reduction
- Duration
- 3-5 years total
- Cost (5yr)
- $2,340-$3,500
- Convenience
- Daily drops at home; zero clinic visits after initial consultation; no needles
- Safety
- Local oral reactions most common; systemic reactions rare; no in-office wait required
- Efficacy
- Symptom suppression only; no disease modification; symptoms return within 24 hours of stopping
- Duration
- Indefinitely — no defined end date
- Cost (5yr)
- $600-$1,800
- Convenience
- Once daily pill; no clinic visits; available without prescription
- Safety
- Generally well-tolerated; sedation with first-generation antihistamines
- Efficacy
- Effective for nasal congestion and rhinitis; no disease modification; requires daily use
- Duration
- Indefinitely
- Cost (5yr)
- $500-$2,000
- Convenience
- 1-2 sprays daily; no clinic visits required
- Safety
- Generally safe; local nasal dryness and epistaxis are common
For patients who find the weekly-to-monthly clinic visit schedule difficult to sustain, Curex delivers the same allergy-shot immunotherapy to your home for $129/month all-inclusive — one weekly shot you self-administer, with your first dose and every dose change supervised live over Zoom by a board-certified allergist, so you keep the proven shot protocol without the office visits.
See if at-home shots are right for youFrequently asked questions
How often do you get allergy shots during the build-up phase?
During the build-up phase, allergy shots are typically given 1-2 times per week. The standard conventional protocol involves one or two visits per week for 3-6 months, with each injection delivering a slightly higher allergen dose than the previous one. Some allergists use a cluster protocol — where 2-3 injections are given per visit over fewer weeks — which condenses the build-up to 4-8 weeks. Rush protocols can reach maintenance dose even faster, over 1-3 days, though these carry higher rates of systemic reactions and require special precautions. Your specific frequency will depend on which protocol your allergist recommends based on your health profile.
How often do you get allergy shots during the maintenance phase?
During the maintenance phase, allergy shots are given every 2-4 weeks. Most adult patients receive injections once a month (every 4 weeks), while some — particularly children or patients with suboptimal responses — may continue on a biweekly schedule. The WAO Position Paper supports 4-week maintenance intervals as standard for most patients. Research by Nelson (2014) found no significant difference in symptom scores between monthly and biweekly maintenance schedules for patients who have been stable on maintenance for more than one year. Your allergist will determine the right interval based on your specific allergen panel and response to treatment.
What if I miss a week of allergy shots during build-up?
If you miss more than 7 days between build-up injections, your allergist will typically reduce your next dose by approximately 50% and restart the escalation from there. This adds roughly 2-4 weeks to your build-up timeline per missed dose. The dose reduction is a safety measure — it prevents your immune system from receiving a larger allergen load than it recently tolerated. According to Cox et al. in JACI 2011, practices parameters recommend re-escalation protocols that vary by the length of the gap. If you know you'll miss a visit, notify your allergist in advance so they can adjust your vial and dosing plan.
Can you space allergy shots further apart during maintenance?
Yes, maintenance intervals can be extended in some cases. Studies suggest that patients who have been stable on maintenance for more than one to two years can tolerate intervals of up to 6-8 weeks without significant efficacy loss. Tinkelman (2004) found that 6-week intervals maintained clinical benefit for established maintenance patients. However, this extension should only be made with your allergist's guidance — it is not a unilateral decision. Factors considered include how long you have been at full maintenance dose, your symptom control history, and whether you have had any recent systemic reactions. Going too long between shots during the early maintenance period does risk reduced effectiveness.
How many allergy shot visits will I have in year one?
Year one of allergy shots typically involves approximately 50-60 clinic visits. The first 24-30 visits happen during the build-up phase, which runs for 3-6 months at a rate of 1-2 visits per week. As you transition into maintenance — usually around month 4-6 — your visit frequency drops, adding another 6-12 maintenance visits during the remainder of year one. Real-world data from Kiel et al. (JACI 2013) found that the average SCIT patient completes 82 total visits over a 3.4-year treatment course, suggesting that first-year intensity is balanced by lighter subsequent years. Each visit also requires a 30-minute post-injection observation period.
Do seasonal allergies affect how often I need allergy shots?
Some allergists reduce the allergen dose — typically by 25-50% — during peak pollen season for patients being treated for relevant seasonal allergens. This seasonal adjustment is a common but not universally required practice. The rationale is that patients already have elevated allergen exposure from the environment, so a full injection dose on top of natural exposure may increase the risk of systemic reactions. Outside of pollen season, the standard build-up or maintenance schedule applies. There is no need to space injections differently during off-season periods unless your allergist has specifically recommended a modified protocol based on your reaction history.
How long does each allergy shot appointment take?
Each allergy shot appointment typically takes 45-60 minutes from check-in to discharge. The injection itself takes only a few minutes. The mandatory 30-minute post-injection observation period is the primary time requirement — this wait cannot be shortened or waived, regardless of how many shots you have received without problems. AAAAI and ACAAI practice parameters require this observation period at every visit to allow for prompt treatment if a systemic reaction occurs. Adding check-in, vital sign measurement, and the injection procedure itself, patients should budget a full hour per visit. Some practices offer early-morning or evening appointments to accommodate work schedules.
How many total allergy shots do you get over the entire treatment?
Over a complete 3-5 year allergy shot course, patients typically receive between 168 and 380 total injections. The range reflects variability in build-up protocol (conventional vs. cluster), maintenance interval (monthly vs. biweekly), treatment duration (3 vs. 5 years), and whether the patient receives 1 or 2 injections per visit due to multiple allergen groups. The lower end — around 168 injections — represents a 3-year course with monthly maintenance and a single injection per visit. The upper end represents a 5-year course with biweekly maintenance and two injections per visit. Your allergist can give you a more specific estimate based on your individual allergen panel and chosen protocol.
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Read moreGet your allergy shots — without the clinic.
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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.