OLLEREG — Developed by a Board-Certified Allergist
Board-Certified Allergist Formulated

Allergist-Developed Allergy Sprays — Delivered to Your Door

OLLEREG sublingual immunotherapy (under-the-tongue allergy spray) is the same science as allergy shots — formulated by Dr. Dat Tran, MD, FAAAAI, and shipped straight to you. Two sprays, once a day. No clinic visits.

See How It Works ↓
Backed by 30+ years of science · 90-day money-back guarantee · No insurance or prescription needed
Dr. Dat Tran, MD, FAAAAI

Dr. Dat Tran, MD, FAAAAI

Board-Certified Allergist & Immunologist · Houston, TX

“Allergy shots work, but most people can’t commit to weekly clinic visits for three to five years. OLLEREG uses the same immunological mechanism in a sublingual format you can take at home in under a minute.”
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. See the clinic →
Using OLLEREG sublingual immunotherapy spray

Two Sprays. Once a Day. That's It.

Spray under your tongue, wait 5 minutes, and go about your day. No clinic appointments, no needles, no complicated routine.

Find your match

Answer 4 Quick Questions

Question 1 of 4

What type of allergies do you deal with?

Have you tried immunotherapy before?

What’s held you back from treatment?

How long have you been dealing with allergies?

Compare: Wyndly charges $55+/mo. Curex is $100/mo without insurance. OLLEREG starts at $25/mo — same science, lower price. See full comparison →

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

Real Patients. Real Results.

Clinically developed. Patient approved.

Couple holding OLLEREG spray
★★★★★
"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
Woman outdoors holding OLLEREG spray
★★★★★
"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

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.
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.
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.
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.

Trust the Science. Start Today.

Doctor-formulated. Clinically studied mechanism backed by 30+ years of published research. Delivered to your door.

Get Started — From $25/month

Learn more about OLLEREG →

Get Started — From $25/month