Oral Immunotherapy — No Shots Required

Your Allergies
End Here. Finally.

OLLEREG delivers pre-formulated allergy relief sprays straight to your door. No clinic visits. No injections. Subscribe to your allergen type and start building tolerance in weeks.

Shop Sprays

Years of OIT Science

Money-Back Guarantee

Free

Shipping Every Month

OLLEREG Oral Spray

Pre-formulated Ships monthly Cancel anytime

Plant-Based

Glycerin solution

No Injections

Painless oral spray

Pre-Formulated Monthly Sprays

Choose your allergy spray

Each spray is pre-formulated with clinical-grade allergen extracts. Subscribe monthly, cancel anytime. A short safety screening is required before checkout.

Seasonal

Pollen Relief Spray

For tree, grass & weed pollen — the leading cause of seasonal allergies across Texas and the South.

OakRagweedBermudaCedarTimothy

$97

$25

/mo for first year

Free shipping · 90-day money-back guarantee

SecureFree Ship90-Day Guarantee

Year-Round

Pet Dander Spray

Don't give up your pets. Build tolerance to dog and cat dander — the most common indoor year-round allergen.

DogCatHorseRabbit

$97

$25

/mo for first year

Free shipping · 90-day money-back guarantee

SecureFree Ship90-Day Guarantee

Perennial

Indoor Allergen Spray

For dust mites and mold — triggers behind perennial congestion, worsened asthma, and chronic sinusitis.

Dust MiteMoldCockroachMouse

$97

$25

/mo for first year

Free shipping · 90-day money-back guarantee

SecureFree Ship90-Day Guarantee

Physician-Formulated

Custom Spray

Get a spray formulated specifically for your allergy test results. Dr. Tran creates a personalized blend targeting your exact allergen profile.

Custom BlendAllergy Test BasedPhysician Consultation

$50

/mo starting

Contact for details · Free shipping · 90-day money-back guarantee

Call for Details

All-in-One Complete Bundle

The complete OLLEREG regimen — pollen, pet dander & indoor allergens in one comprehensive monthly subscription. Ideal for multi-allergen sufferers.

Save $94/month vs. individual sprays

PollenPet DanderIndoor Allergens

$197

$49

/mo for first year

Free shipping · 90-day money-back guarantee

SecureFree Ship90-Day Guarantee

All products use FDA-approved allergen extracts off-label for OIT/SLIT · Supervised by Dr. Dat Tran, MD, FAAAAI · Questions? Email us

Is it safe for kids?

Yes — OLLEREG is safe for children as young as 3. A parent or guardian completes the safety screening and supervises daily administration.

How long until I see results?

Many patients notice improvement within 3-6 months. We offer a 90-day money-back guarantee so you can try it risk-free.

Simple Process

Up and running in three steps

No clinic. No waiting room. No needles. Subscribe, pass the safety screening, and your spray ships every month.

Choose Your Spray

Select your allergen type. Complete a 2-minute safety checklist to confirm you're a good candidate for at-home OIT.

Receive Monthly Doses

Your spray ships free every month, automatically stepping up to a higher allergen concentration to build tolerance over time.

Breathe Easier

1-2 sprays daily, wait 5 minutes before eating. Most patients notice improvement in 3-6 months. Maintenance for 3 years = lasting relief.

What We Treat

Every allergy. One spray.

OLLEREG sprays cover the most common environmental allergens.

Tree Pollen

Seasonal tree allergies lasting months — nose, eyes, lungs.

OakBirchCedarMaple

Grass & Weed

Bermuda, ragweed — dominant Texas triggers in spring and fall.

BermudaRagweedTimothy

Pet Dander

Cat and dog dander persisting year-round, even after pets leave.

DogCatHorse

Indoor Allergens

Dust mites and mold worsening asthma, sinusitis, and eczema.

Dust MiteMoldCockroach

Asthma & Sinusitis

Allergen desensitization reduces allergen-triggered asthma flares.

AsthmaSinusitisEczema

Why OLLEREG

Smarter than allergy shots — and daily sprays

Same long-term immunotherapy results — without the pain, time, or $4,000/year price tag. And unlike daily nasal sprays, OLLEREG actually retrains your immune system.

Feature

Recommended OLLEREG

Daily Nasal Sprays

Allergy Shots

Builds lasting immune tolerance Key difference
✓Retrains the immune system over time
✗Suppresses inflammation only, no immune change
PartialRequires 3–5 years of weekly clinic visits

100% at-home treatment

✓

✗Clinic visit every week for 3–5 years

No injections / painless

✓1–2 oral sprays daily

PartialNo injections but may cause dryness & nosebleeds long-term

✗Injections every visit, risk of anaphylaxis

Safe for young children

✓Ages 3+, physician supervised

PartialAge minimums vary; not all formulas approved for young kids

✗Weekly injections, not recommended under 5

No clinic visits required

✓Online safety screening only

✓OTC, no appointment needed

✗Must stay at clinic 20–30 min after every injection

Physician developed & supervised

✓Dr. Dat Tran MD, board-certified allergist/immunologist

✗OTC, no medical supervision

✓

Escalating doses build tolerance Key difference
✓Monthly dose escalation, same science as shots
✗Fixed dose, no tolerance mechanism
PartialRequires years of injections to achieve

Free shipping to your door

✓

✗Pharmacy pickup only

✗Clinic-administered only

Typical annual cost

~$300/yrFirst year at $25/moThen ~$1,164/yr ($97/mo)

$200–360/yrIndefinite ongoing expense

$1,500–$4,000/yrPlus time off work for weekly appointments

Daily nasal spray costs based on average OTC retail pricing. Allergy shot costs include published estimates for serum and administration fees and do not include copays or time costs. Individual results vary. Consult a healthcare provider before changing any medication.

Real Results

Families breathing easier

Myself and all my kids have been using it for one year and our allergies are much better. The darkness under our eyes has gone away.

Ramirez Family

Houston, TX

I just see OLLEREG as liquid gold. It is really helping my child's allergies. Dr. Tran shows great care and compassion.

Linda K.

Sugar Land, TX

Cedar season used to wreck me every winter. After 6 months on the Pollen spray I barely noticed it this year. Genuinely life-changing.

Marcus D.

San Antonio, TX

My son sleeps so much better now because he can finally breathe through the night without congestion.

Jennifer H.

Sugar Land, TX

Started OLLEREG on our 3 year old for dog and cat allergy. She is tolerating it perfectly and we can't wait to have dogs again!

Sarah P.

Austin, TX

We tried allergy shots for two years — the weekly clinic visits were impossible with three kids. OLLEREG is so much easier and the results have been just as good.

Ashley M.

Katy, TX

Safety First

Safe. Proven.
30+ years of science.

OIT/SLIT has been used globally for decades. OLLEREG is designed with your safety at the forefront — and a safety screening protects every order.

Extremely well-tolerated: Most experience only mild oral itchiness. Anaphylaxis is extremely rare with sublingual delivery.
Physician developed: Every formula is developed and overseen by Dr. Dat Tran, MD, FAAAAI — board-certified allergist/immunologist.
FDA-approved extracts: Clinical-grade allergen extracts used off-label for OIT/SLIT, identical to those used in allergy shots.
Safety gate at checkout: Every customer completes our disqualification checklist before subscribing. Those with contraindications are directed to call our office instead.

Doctor consulting with patient in clinic

30+

Years of OIT research worldwide

~80%

Patients see meaningful relief

Patent-Pending Adjuvant

Unique natural formula to boost immune tolerance — found only in OLLEREG

Cancel Anytime

No commitments. No cancellation fees. Full refund within the first 90 days.

FAQ

Common questions

Are these sprays pre-formulated or custom?

The shop sprays are pre-formulated for each allergen category using standard clinical concentrations. For a fully customized formula based on your specific allergy test results, contact us directly for a physician consultation.

How do I take OLLEREG?

Spray 1-2 times into your mouth daily and wait 5 minutes before eating or drinking. Morning or anytime during the day — it takes under a minute.

How long until I see results?

Many patients notice improvement within 3-6 months. Maintenance dose is reached at ~6 months and treatment continues for a minimum of 3 years for durable long-term relief.

Can I give OLLEREG to my child?

Yes — OLLEREG is safe for children, with patients as young as 3 using it successfully. A parent or guardian must complete the safety screening and confirm they will supervise administration.

Who should NOT use OLLEREG?

People with a history of anaphylaxis, severe uncontrolled asthma, those who are pregnant, on immunosuppressants, or on beta-blockers should not self-administer. Our checkout safety screening will flag these conditions and direct you to call our office instead.

What is the cancellation and refund policy?

Cancel your subscription at any time — no fees. OLLEREG offers a 90-day money-back guarantee because real results from immunotherapy take time. Use it for 90 days, and if you're not satisfied, we'll refund you in full.

Meet the Doctor

Invented by an allergist, for allergy sufferers

Dat Tran, MD, FAAAAI

Medical Director

Dr. Tran is a board-certified allergist/immunologist. He did his fellowship training at the National Institutes of Health and pediatric residency at Texas Children's/Baylor College of Medicine. He was a former tenured associate professor at UTHealth McGovern Medical School. He left academia and opened Innovative Allergy, PLLC in 2017 with a mission to efficiently care and treat patients with innovative approaches. He invented Ollereg as a convenient, painless treatment for environmental allergy, EatFreely OIT to cure food allergy, and Esoygen to treat hormonal imbalance. He is continuously researching to develop novel treatments and continues to be active in research.

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Get in Touch

Contact us

Have questions about OLLEREG, your subscription, or whether immunotherapy is right for you? We're here to help.

Call Us

(346) 232-2993
Mon-Fri, 9am-5pm CT

Email Us

order@ollereg.com
We typically respond within 24 hours

Visit Our Office

Innovative Allergy
4110 Bellaire Blvd #202
Houston, TX 77025

Physician Consultation

Need a custom formula or have complex allergies?
Schedule a consultation with Dr. Tran.

Your Allergies
End Here. Finally.