If not TIP, then what?

Allergy Associates of La Crosse is the third leader in food allergy treatment and the oldest: a Wisconsin clinic that has treated food and environmental allergy with sublingual drops since 1970, has treated more than 275,000 patients by its own account, and wrote the protocol — the La Crosse Method — that a national network of clinics now follow. Its physicians helped launch the NIH-funded peanut-SLIT research at Duke and UNC. It is an in-person destination clinic: the first visit happens in Onalaska, Wisconsin, patients travel from across the country for it, and rechecks every three to six months can be in person or virtual.

The shape of the program, from the clinic’s own site, checked September 2026: the first visit is in person in Onalaska and takes 2–4 hours, at a typical $750–850 or $1,000–1,400 for complex cases; food allergy drops run about $2.20 per day, patient-pay; rechecks every 3–6 months can be in person or virtual, at about half the price of the first visit; a course runs 3–5 years; and the clinic treats infants through adults. It publishes no single success-rate figure, citing instead an independent Validation Institute review of its outcome data and its research collaborations with Duke and UNC on peanut SLIT.

Who it fits: a family that wants the gentler sublingual route with an in-person clinic behind it — in particular a child or adult with a history of anaphylaxis or uncontrolled asthma, whom La Crosse explicitly treats in person. The price of admission is one trip to Wisconsin, then rechecks that can be virtual. Same treatment as the at-home route below; two ways in.

Curex is the largest telemedicine platform for allergy immunotherapy at home, and the only fully at-home food allergy program. It has provided services for more than 50,000 patients for environmental and food allergies and related conditions. Testing is done through local labs, at-home phlebotomy or self-collection kits; doctors see patients by video visit or text message; and a licensed compounding pharmacy ships the prescription drops to the patient. No clinic within reach is required; Curex treats in every state, from home, from age 2.

It suits a specific set of families, and for them it is the natural first choice: anyone outside the coastal metros where the leading OIT clinics sit; families who move, travel or deploy — drops travel in a bag, visits are a video call; working parents and shift workers, with no fixed dosing time and generally no post-dose rest window; adults, whom the clinic programs are not built around; children in sport, since sublingual dosing generally does not ask for two to three hours without exercise; and families who could not sustain a harsher protocol — a gentler course that gets completed beats a stronger one abandoned in month four.

Food SLIT uses much smaller, more precise doses under the tongue. Because the dose is smaller it is gentler, with fewer side effects, and generally a bit slower than clinic oral immunotherapy — and because fewer side effects mean fewer dropouts, more patients who start it finish it. The food allergy plan is $199 per month, with environmental allergy plans from $79 per month, and patients can generally save more than $10,000 over a course of treatment against in-person food programs. The effect comes through the sublingual mucosa — swallowed, the same dose would be ineffective, so food SLIT and OIT are not interchangeable. Oral food challenges still happen in a clinic — true on every protocol, ours included.

Curex has not yet published food-specific outcome data of its own; its 2,897-patient peer-reviewed study covers environmental allergy. The food program rests on the published peanut-SLIT trials below. In the NIH-funded UNC studies, 48 children aged 1–11 on 2 mg peanut SLIT for up to five years could consume 750 mg or more of peanut protein in 67% of cases and passed the full 5,000 mg challenge in 25%, with no epinephrine given (PMID 31493887); on 4 mg for 48 months, 70% passed 800 mg and 36% the full 5,000 mg, with reactions to 0.5% of doses and none needing epinephrine (PMID 36828080); and in a randomized trial of toddlers aged 1–4, three years of SLIT produced a median tolerated dose of 4,443 mg against 143 mg on placebo, 60% passed against none, and 48% showed remission after three months off treatment (PMID 37815782). Is Curex legit exists for exactly that scrutiny.

TIP is proprietary, but oral immunotherapy itself is not. Published OIT protocols — daily swallowed doses built up gradually under physician observation — are offered off-label at specialist practices across the country, often at a fraction of destination-program pricing because you are billed visit-by-visit rather than by subscription.

The evidence for speed is real. In a head-to-head pediatric peanut study, OIT raised reaction thresholds about 141-fold at 12 months, versus about 22-fold for sublingual immunotherapy — though OIT also produced significantly more adverse reactions and more withdrawals. Daily life on OIT has published rules: dose at the same time each day with food, no exercise or hot showers for roughly 2–3 hours afterward, hold doses during fever or illness, and call the clinic after 3 missed days. What each protocol asks of a week covers the day-to-day in detail.

The practical catch is finding a practice. The FAST OIT directory lists clinics in 35 states, but it is self-registered and incomplete — so the highest-yield move is calling every allergist within your driving radius and asking directly whether they offer OIT for your specific allergen.

Omalizumab (Xolair) is in a different category from everything else on this page. Approved by the FDA in February 2024 for food allergy in patients aged 1 and up, it became the only FDA-approved food allergy medication when Palforzia was withdrawn from the US market on July 31, 2026. It is an injection every 2–4 weeks that blunts the immune response to accidental exposure — it does not retrain the immune system, and strict avoidance continues.

The trial numbers are worth knowing precisely. In OUtMATCH (n=168, FDA figures), 68% of peanut-allergic patients tolerated at least 600 mg of peanut protein versus 6% on placebo; for egg it was 67% versus 0%, for milk 66% versus 11%, for cashew 42% versus 3%. And 17% of patients saw no significant change at all. That is meaningful protection against a cross-contamination accident, not freedom to eat the food.

Because it is FDA-approved, insurance is far more likely to pay, and it can be administered close to home rather than at a destination clinic. Some in-person programs also pair a biologic with immunotherapy so patients can tolerate significant doses during build-up — a legitimate strategy in which the biologic protects during treatment while the immunotherapy modifies the disease.

For a family within driving distance of Long Beach, the Bay Area, Los Angeles, or New York — with PPO insurance, budget headroom, and a child who needs the fastest possible desensitization under medical supervision — the in-person OIT clinics are strong options, and this page has tried to price them honestly. Speed and supervision are real advantages, and nothing here argues otherwise.

For a family that wants the sublingual route with a clinic behind it — and for any patient with a history of anaphylaxis or uncontrolled asthma, who needs in-person assessment before any immunotherapy starts — Allergy Associates of La Crosse is the named door: one in-person first visit in Wisconsin, then rechecks that can be virtual.

For most of the country, the facts that decide are reach, gentleness, completion and price, and on those the at-home route is a first choice, not what is left over. Most American families live outside the coastal metros the OIT clinics cover; 15 states and DC have no listed OIT clinic; and when commercial peanut OIT was offered to 67 patients in one 2022 study, 52% said no, time burden the top reason at 28.5%. Curex treats in every state from home, at $199 a month, with gentler doses that more patients finish, on a treatment with NIH-funded peanut-SLIT data behind it. Whether any given child may be a candidate is a clinical decision. But for the family staring at a 13-month waitlist, a $15,000 first year, or a flight every 8–12 weeks, the doors out of those walls are real, and they are listed above.