Drops vs shots

Allergy drops vs allergy shots

The trial evidence, what each costs with and without insurance, what the week looks like, and who each route fits. Curex offers both: allergy drops for environmental and food allergies, and allergy shots for environmental allergies.

Short answer

Both routes work: Cochrane reviews found shots and drops effective against placebo, and the best available comparison found no conclusive difference between them. Drops have a lower rate of systemic reactions, but serious reactions remain possible. The 2024 American Academy of Otolaryngology inhalant-allergy guideline recommends discussing SCIT, aqueous SLIT and tablets through shared decision-making; aqueous drops remain off-label in the U.S. Curex describes drops for environmental and food allergies and shots for environmental allergies. The Curex plan guide, checked October 9, 2026, lists environmental treatment at $79/month or $790/year in its insurance category, plus specialist copay, and $99/month or $990/year self-pay. The $39/month or $390/year rate is specifically the Pet Plan in the insurance category, not the standard environmental or food rate. Food, combo, Medicaid and SCIT plans have separate listed rates. See the canonical Curex pricing record for the full matrix and additional charges; confirm your written quote before enrolling. The deciding question is which schedule you can keep for three to five years.

Medically reviewed by Dr. Neeta Ogden, MD, FACAAI · Last reviewed September 2026

The evidence

What the trials actually show

of allergy shots vs placebo in the Cochrane review — effective
51 trialsof allergy shots vs placebo in the Cochrane review — effective
of sublingual immunotherapy vs placebo in the Cochrane review — effective
60 trialsof sublingual immunotherapy vs placebo in the Cochrane review — effective
of injections produce a systemic reaction in US surveillance — why shots are observed in clinic
~0.1%of injections produce a systemic reaction in US surveillance — why shots are observed in clinic
adherence on at-home drops in Curex’s 2,897-patient study
>90%adherence on at-home drops in Curex’s 2,897-patient study

Calderón 2007 (PMID 17253469); Radulovic 2010 (PMID 21154351); AAAAI/ACAAI surveillance of systemic reactions to subcutaneous immunotherapy; Tharpe 2026 (PMID 42358593). Full references below.

Separate Cochrane reviews found both routes effective for allergic rhinitis against placebo — 51 trials for shots (PMID 17253469) and 60 for sublingual immunotherapy (PMID 21154351). Head-to-head trials are few and small, so the most rigorous comparison is an indirect one: Dretzke and colleagues pooled the placebo-controlled trials of each route and found both effective, with no conclusive difference between them (PMID 23557834).

On safety the direction is the other way. Shots are observed in clinic for 30 minutes because systemic reactions, though uncommon, occur at roughly one in a thousand injections, with rare fatalities historically. Reactions to drops are mostly local — mouth itching, mild swelling — and anaphylaxis is rare; in Curex’s own 2,897-patient peer-reviewed study adverse events were infrequent and there was no anaphylaxis (PMID 42358593).

On guidelines, the American Academy of Otolaryngology included allergy drops in the standard of care (PMID 25644617), and drops are the standard of care in many EU countries. See evidence and guidelines.

Regulatory record

Personalized allergy drops are compounded for each individual patient. Such formulations are not reviewed by the FDA. However, they remain common practice for allergists and ENT allergists because they provide a convenient alternative to allergy shots. Allergy drops are the standard of care in many EU countries.

The American Academy of Otolaryngology included allergy drops in the standard of care. The FDA has approved four sublingual tablets for single allergens; allergy drops are compounded, target multiple allergies at once, and remain off-label.

Has the FDA written to Curex about allergy drops? Once, in 2021: an untitled letter about how the drops were marketed. Curex changed its website, responded in April 2021, and has had no FDA correspondence about allergy drops since.

Does the 2025 FDA warning letter concern allergy drops? No. The September 2025 warning letter concerned marketing language for compounded GLP-1 weight-loss products; Curex made the requested changes.

Every letter and response: Curex and the FDA. The short version: Is Curex legit?

The week

What each route asks of you

Build-up
Allergy shots (SCIT)1–2 clinic visits a week for roughly 3–6 months, each with a 30-minute observation period.
Allergy drops (SLIT)A daily dose at home from day one; the first dose is sometimes observed.
Maintenance
Allergy shots (SCIT)A clinic visit every 2–4 weeks for 3–5 years.
Allergy drops (SLIT)A daily dose at home for 3–5 years.
After each dose
Allergy shots (SCIT)30 minutes observed in clinic; avoid strenuous exercise for a couple of hours.
Allergy drops (SLIT)Hold under the tongue for 1–2 minutes; no observation period.
If you travel
Allergy shots (SCIT)Doses are missed unless another clinic can give them.
Allergy drops (SLIT)The bottle travels with you.
If you stop for weeks
Allergy shots (SCIT)The dose is usually stepped back down before resuming.
Allergy drops (SLIT)The dose is usually stepped back down before resuming.
Adherence
Allergy shots (SCIT)The visit schedule is the usual reason shots are stopped early.
Allergy drops (SLIT)Above 90% adherence in Curex’s 2,897-patient peer-reviewed study.

Typical schedules across published protocols; the protocol your own prescriber writes is the one that governs.

What keeps people on treatment is the service around it: reminders, refills that arrive on time, a clinician who answers. In Curex’s peer-reviewed study, adherence was above 90% (PMID 42358593).

The cost

What each costs, and why the payment model matters more than the route

Typical annual cost

Testing, visits and extract

Allergy shots — in clinic
$3,000–$5,000 for in-clinic allergen immunotherapy
Allergy drops — at home
The Curex plan guide, checked October 9, 2026, lists environmental treatment at $79/month or $790/year in its insurance category, plus specialist copay, and $99/month or $990/year self-pay. The $39/month or $390/year rate is specifically the Pet Plan in the insurance category, not the standard environmental or food rate. Food, combo, Medicaid and SCIT plans have separate listed rates. See the canonical Curex pricing record for the full matrix and additional charges; confirm your written quote before enrolling.

Insurance

Allergy shots — in clinic
Often covered; a copay per visit, commonly $10–$40, across 25–50 first-year visits
Allergy drops — at home
Treatment plan fees are paid out of pocket. Insurance can be billed for testing and clinician consultations; insurance-category plans also list a specialist copay. Coverage, deductibles and coinsurance depend on your benefits.

Uninsured or high deductible

Allergy shots — in clinic
The full figure applies in the first year; maintenance years cost less
Allergy drops — at home
Select the applicable self-pay plan at /learn/curex-pricing; confirm testing and consultation charges.

Time

The cost most comparisons leave out

Allergy shots — in clinic
Dozens of visits in year one, each with 30 minutes observed, plus travel
Allergy drops — at home
None beyond the daily dose; clinician visits are remote

Food allergy

Allergy shots — in clinic
Not available by injection
Allergy drops — at home
Off-label; in-clinic programs can exceed $10,000 a year. Curex lists food and food-combination plans at /learn/curex-pricing; request your all-in program quote.

Which is cheaper for you depends almost entirely on your coverage and your distance from a clinic. With strong insurance, a low copay and an allergist nearby, shots can cost the same or less in dollars. Without insurance, with a high deductible, or with no realistic way to make weekly daytime appointments, at-home treatment is usually cheaper and far cheaper in time. The full breakdown is at is Curex worth the money, and other services’ published prices are at providers compared.

Fit

Who each route fits

Shots may fit you if…

  • You can keep a clinic schedule for years.
  • Your insurance covers immunotherapy with a low copay and there is a clinic nearby.
  • You have venom allergy — drops are not used for it.
  • Your allergist wants the closer supervision of in-clinic dosing, for example with asthma.
  • You would rather not manage a daily medication at home.

Drops may fit you if…

  • The shot schedule is the thing that would make you quit — shift work, travel, a rural address, no childcare, needle aversion.
  • You are uninsured or on a high-deductible plan and the in-clinic price is out of reach.
  • You need food allergy immunotherapy at home, which is only available sublingually.
  • You have tried shots and stopped. Immunotherapy abandoned early is the most expensive option of all, and a route you will finish beats a route you will not — see how Curex works.

Neither, without an in-person evaluation, if you have a history of anaphylaxis, poorly controlled or severe asthma, or a suspected food or drug allergy. See when you need an allergist in person.

Sources

References

  • Calderón MA et al. Allergen injection immunotherapy for seasonal allergic rhinitis. Cochrane Database Syst Rev 2007. 51 randomized trials, 2,871 participants: subcutaneous immunotherapy reduced symptom and medication scores versus placebo. PMID 17253469
  • Radulovic S et al. Sublingual immunotherapy for allergic rhinitis. Cochrane Database Syst Rev 2010. 60 randomized trials, 4,589 participants: sublingual immunotherapy reduced symptom and medication scores versus placebo, with no serious systemic reactions reported in the included trials. PMID 21154351
  • Dretzke J et al. Subcutaneous and sublingual immunotherapy for seasonal allergic rhinitis: a systematic review and indirect comparison. J Allergy Clin Immunol 2013. Both routes effective; the indirect comparison favoured subcutaneous immunotherapy on symptom and medication scores, without a conclusive difference. PMID 23557834
  • Tharpe C et al. Real-world outcomes of at-home sublingual immunotherapy in 2,897 patients. Front Allergy 2026;7:1865860. Peer-reviewed real-world study of Curex patients: clinically meaningful improvement in 28% at 12 months and 45% at 24 months; adherence above 90%; no anaphylaxis. PMID 42358593
  • Seidman MD et al. Clinical practice guideline: allergic rhinitis. Otolaryngol Head Neck Surg 2015. American Academy of Otolaryngology–Head and Neck Surgery guideline: clinicians should offer sublingual or subcutaneous immunotherapy to patients with allergic rhinitis who do not respond adequately to medication. PMID 25644617

❓Frequently Asked Questions

Both are effective. Separate Cochrane reviews found both routes effective for allergic rhinitis versus placebo: 51 trials for shots (Calderón 2007) and 60 trials for sublingual immunotherapy (Radulovic 2010). The most rigorous comparison between them, Dretzke and colleagues’ 2013 indirect comparison in the Journal of Allergy and Clinical Immunology, found no conclusive difference. The American Academy of Otolaryngology includes allergy drops in the standard of care, and drops are the standard of care in many EU countries.

Drops carry a lower risk of systemic reactions. Shots are given in a clinic with a 30-minute observation period precisely because systemic reactions, though uncommon, occur at roughly 0.1% of injections in US surveillance, with rare fatalities historically. Sublingual immunotherapy’s reactions are mostly local (mouth itching, mild swelling); anaphylaxis has been reported but is rare, and in Curex’s 2,897-patient peer-reviewed study adverse events were infrequent and there was no anaphylaxis. Anyone with poorly controlled asthma or a history of anaphylaxis should be evaluated in person before either route.

In-clinic allergen immunotherapy — shots or drops given at a clinic — typically costs $3,000 to $5,000 a year when you include testing, visits and the extract, and in-clinic food allergy programs can exceed $10,000 a year. With good insurance the out-of-pocket for shots may be a copay per visit, often $10–$40, times 25–50 visits in the first year. The Curex plan guide, checked October 9, 2026, lists environmental treatment at $79/month or $790/year in its insurance category, plus specialist copay, and $99/month or $990/year self-pay. The $39/month or $390/year rate is specifically the Pet Plan in the insurance category, not the standard environmental or food rate. Food, combo, Medicaid and SCIT plans have separate listed rates. See the canonical Curex pricing record for the full matrix and additional charges; confirm your written quote before enrolling. Compare your program-specific all-in quote with those clinic costs.

Mostly the schedule. Build-up typically means one or two clinic visits a week for three to six months, each with a 30-minute wait afterward, then monthly visits for years. At-home drops remove the appointments; in Curex’s 2,897-patient peer-reviewed study, adherence was above 90%.

Personalized allergy drops are compounded for each individual patient. Such formulations are not reviewed by the FDA. However, they remain common practice for allergists and ENT allergists because they provide a convenient alternative to allergy shots. Allergy drops are the standard of care in many EU countries. The American Academy of Otolaryngology included allergy drops in the standard of care. The FDA has approved four sublingual tablets for single allergens; allergy drops are compounded, target multiple allergies at once, and remain off-label.

When you can keep a clinic schedule for years; when you have insurance that covers immunotherapy with a low copay and a clinic nearby; when you have venom allergy (drops are not used for it); when your allergist wants the closer supervision that in-clinic dosing gives, for example with asthma; and when you prefer not to manage a daily medication at home. Curex offers allergy shots for environmental allergies as well as drops.

When the shot schedule is the thing that would make you quit — shift work, travel, a rural address, no childcare, needle aversion — or when you are uninsured or on a high-deductible plan and the in-clinic price is out of reach. The route you finish is the one that works. Drops are also the only immunotherapy currently available for food allergy at home.

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.

Cost figures are published ranges for in-clinic allergen immunotherapy and Curex’s own list prices as of September 2026; they change and should be verified. First published September 21, 2026.

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