Developed by Dr. Dat Tran, MD, FAAAAI

Immunotherapy Formulated by the Allergist Who Practices It. From $25/Month.

OLLEREG is an at-home allergy immunotherapy spray developed by Dr. Dat Tran, MD, FAAAAI — a board-certified allergist/immunologist running 8 clinics in Houston. Same approach as allergy shots, delivered as a whole-mouth spray that reaches more of your mouth in one dose — not just the spot under your tongue. Two sprays, once a day, at home.

Get Started — From $25/Month ↓

allergen extracts · Backed by 30+ years of science · 90-day money-back guarantee · No insurance needed

Dr. Dat Tran, MD, FAAAAI

Board-Certified Allergist & Immunologist · Houston, TX

“Allergy shots work — I prescribe them every day. But most patients can’t commit to weekly clinic visits for three to five years. Sublingual drops fixed the compliance problem, but they pool under the tongue and only reach one patch of immune tissue. The inside of your mouth has five of them. OLLEREG is the first spray designed to reach all of them — same science, built around how the body is actually put together.”

FAAAAI Fellow NIH Trained Board Certified 15+ Years Practice

As Seen on Fox 26 Houston

Founder & Medical Director of Innovative Allergy — 6+ locations across Houston. 5.0 · 300+ Google Reviews.

Why Patients Trust OLLEREG

Formulated by an Allergist. Priced Like a Subscription.

Formulated by a Practicing Allergist

Dr. Dat Tran, MD, FAAAAI is a board-certified, NIH-trained allergist who still sees patients at Innovative Allergy in Houston. He formulated OLLEREG around the same allergen extracts he uses in his own clinics.

Same Science as $1,000+ Programs, $25/Month

In-clinic allergy shot programs commonly run $1,500–$4,000 a year. OLLEREG delivers the same immunotherapy approach as a whole-mouth spray for a flat $25/month — no insurance, no copays.

90-Day Money-Back Guarantee

Use OLLEREG consistently for 90 days. If you’re not satisfied, we’ll refund you in full — no fine print, no fees.

Find your match

Answer 4 Quick Questions

As Seen On Fox 26

Fox 26 Houston

~80%

of patients see meaningful relief

30+

years of OIT science worldwide

Compare Your Options

	RecommendedOLLEREG	OTC Medications	Allergy Shots
Treats root cause	✓	✗	✓
No clinic visits	✓	✓	✗
No needles	✓	✓	✗
Safe for ages 3+	✓	Varies	✗
Doctor-developed	✓	✗	Varies
Builds lasting tolerance	✓	✗	✓
Typical annual cost	From ~$300/yr	$200–360/yr	$1,500–4,000/yr

Side-by-Side

OLLEREG vs Curex vs Wyndly

See how the allergist-formulated option stacks up — side by side.

Feature	RecommendedOLLEREG	Curex	Wyndly
Monthly price	$25/month	$100/mo (no insurance) or $39/mo + copays*	$65–75/month
Sign-up fee	$0	$49	$0
First-year cost	~$300 flat	~$1,249 (no insurance) or ~$517+ with copays*	~$780–900
Developed by allergist	✓ Dr. Dat Tran, MD, FAAAAI	Telehealth doctors	Telehealth doctors
NIH-trained physician	✓	✗	✗
Patent-pending formula	✓	✗	✗
Money-back guarantee	90 days	30 days	None listed
Free shipping	✓	✓	✓
All allergens covered	✓ (with bundle)	✓	✓
Insurance required	No — $0 copay	Optional (copays apply)	Required for some plans
Treatment type	Sublingual spray	Sublingual drops	Sublingual drops
Mouth coverage	Spray covers cheeks, gums, and under the tongue in one dose	Drops sit under the tongue	Drops sit under the tongue
Patient Portal / Progress Tracking	✓ Free portal — track symptoms, see progress, message support	Telehealth consultation	Telehealth consultation

*Curex $39/month requires insurance coverage. Without insurance, Curex is $100/month. With insurance, copays ($20–50+ per visit) and deductible costs apply on top of the $39. Total out-of-pocket with Curex is significantly higher than advertised.

Competitor Disclaimer: Competitor pricing and features are based on publicly available information as of April 2026. Prices and offerings may vary. OLLEREG is not affiliated with, endorsed by, or sponsored by Curex or Wyndly. All trademarks belong to their respective owners.

Pricing

Simple Pricing. Doctor-Formulated.

OLLEREG Allergy Spray

$25/month

First year introductory price

✓ Two sprays once a day
✓ Ships free every month
✓ 90-day money-back guarantee
✓ Formulated by Dr. Dat Tran, MD, FAAAAI
✓ allergen extracts
✓ Doctor-formulated, patent-pending

Find Your Spray — $25/month

Ships free within 2-3 business days

Best Value

All-in-One Bundle

$50/month

All allergens covered — First year introductory price

✓ All 3 sprays — pollen, pet dander & indoor
✓ Ships free every month
✓ 90-day money-back guarantee
✓ Formulated by Dr. Dat Tran, MD, FAAAAI
✓ allergen extracts
✓ Doctor-formulated, patent-pending

Get the Bundle

Ships free within 2-3 business days

Real Patients. Real Results.

Clinically developed. Patient approved.

★★★★★

"My allergist was impressed with how much my symptoms improved. OLLEREG is doing what years of nasal sprays couldn't."

Before: Tried every OTC option. Allergy shots were too time-consuming with my schedule.

Verified OLLEREG Patient

★★★★★

"As a nurse, I was skeptical of anything sold online. The FAAAAI credential and NIH training convinced me to try it. Glad I did."

Before: Skeptical of online allergy treatments. Needed clinical credibility before committing.

Verified OLLEREG Patient

Frequently Asked Questions

Is OLLEREG real medicine or a supplement? +

OLLEREG is real immunotherapy, not a supplement. It uses FDA-regulated allergen extracts — the same ones allergists use for subcutaneous immunotherapy (allergy shots). Unlike antihistamines that mask symptoms, OLLEREG retrains your immune system at the source.

How is OLLEREG different from over-the-counter allergy medicine? +

OTC medications like Claritin, Zyrtec, and Flonase only block symptoms temporarily. When you stop taking them, the allergies come right back. OLLEREG is immunotherapy — it gradually changes how your immune system responds, building lasting tolerance over 3+ years.

Who developed OLLEREG? +

Dr. Dat Tran, MD, FAAAAI — a board-certified allergist and immunologist who completed advanced training at the National Institutes of Health. He founded Innovative Allergy in Houston, TX, and developed OLLEREG to make clinical-grade immunotherapy accessible to anyone, anywhere.

What if it doesn’t work? +

OLLEREG comes with a 90-day money-back guarantee. Use it consistently for 90 days, and if you’re not satisfied, we’ll refund you in full.