Mango Blossom Allergy Shots: Why Urushiol Trumps Pollen Every Time
Mango blossom allergy is primarily urushiol contact dermatitis — not pollen aeroallergy. Mango (Mangifera indica) is in the Anacardiaceae family alongside poison ivy, and the sap and peel contain urushiol-related catechols that cause Type IV delayed hypersensitivity in poison-ivy-sensitized individuals. No IUIS pollen allergen exists, pollen is insect-pollinated and not airborne, and SCIT is not routinely indicated for mango blossom.
Mango Blossom Allergy Immunotherapy: How It Works
Allergy immunotherapy is the only long-term treatment that re-trains the immune system to stop overreacting to mango blossom — rather than just masking symptoms with antihistamines or steroids. By gradually exposing the body to controlled doses of mango blossom allergen, immunotherapy shifts the underlying allergic response and produces relief that often outlasts treatment by 7–10 years.
There are two evidence-based forms of mango blossom immunotherapy used today, both built on the same desensitization principle but delivered very differently.
of sustained relief after a complete immunotherapy course — the only allergy treatment with proven long-term effect after stopping.
Allergy Shots (SCIT)
Weekly injections of mango blossom extract in a clinic, escalating over 3–6 months until a maintenance dose is reached. Continued monthly for 3–5 years. Longest clinical track record for mango blossom allergy.
- Strongest evidence base for severe and polysensitized patients
- Covered by most insurance plans
- Requires 50–100+ in-person clinic visits across the full course
Allergy Drops / Tablets (SLIT)
Daily drops or dissolvable tablets containing mango blossom extract, held under the tongue at home. Same desensitization principle, delivered without injections. WHO-recognized as an effective form of allergy immunotherapy since 2001.
- Taken at home — no weekly clinic trips, no needles
- Lower systemic reaction rate than allergy shots
- Curex offers prescription mango blossom immunotherapy drops with allergist oversight
The rest of this page goes deep on allergen-specific immunotherapy with shots — protocol, efficacy data, side effects, and cost. If you’d rather skip the clinic and treat mango blossom allergy with at-home drops, see how Curex sublingual immunotherapy compares below.
What is Mango Blossom?
The biology, taxonomy, and clinical fingerprint of Mango Blossom — the foundation of how SCIT targets it.
Mango blossom (Mangifera indica) — fly and bee-pollinated, not wind-dispersed. 'Mango allergy' is almost always urushiol contact dermatitis from sap or peel, not pollen aeroallergy.
- Scientific name
- Mangifera indica
- Family
- AnacardiaceaeCashew/Sumac family — also includes poison ivy, poison oak, cashew, pistachio
- Type
- Insect-pollinated tropical fruit tree (fly, bee)
- Native to
- South and Southeast Asia; cultivated in Florida, California, Hawaii, and Puerto Rico in the US
- Allergen proteins
- No IUIS-named Mangifera pollen allergen as of May 2026Man i 1 — germin-like protein (fruit allergen, not pollen)Man i 2 — profilin (fruit allergen, not pollen)Urushiol-related catechols in sap/peel — contact allergen (Type IV), not IgE-mediated
- Particle size
- Heavy, sticky — not aerosolized in clinical concentrations
- Avoidance difficulty
- Manageable
How Mango Blossom Allergy Presents
Symptoms by body system — useful for distinguishing Mango Blossom sensitivity from overlapping allergies and infections.
Respiratory (not attributable to pollen)
- Mango pollen is not an ambient aeroallergen — respiratory symptoms near mango trees are not driven by the pollen
- Occupational rhinitis in mango pickers with intensive direct flower exposure is reported but rare
- Respiratory symptoms in mango growers may reflect co-occurring regional aeroallergens (grass, ragweed) rather than mango pollen itself
Ocular
- Eye irritation after touching face following mango sap or peel contact — Type IV mechanism, not IgE pollen allergy
- Conjunctivitis from direct contact with mango sap reported in handlers
- Periorbital dermatitis from urushiol cross-reactivity in poison-ivy-sensitized individuals handling mango
Dermal (the primary allergic concern)
- Perioral dermatitis 24–72 hours after eating mango peel — urushiol Type IV delayed hypersensitivity in poison-ivy-sensitized patients
- Contact dermatitis from mango sap in pickers, handlers, and processors — occupational exposure
- Urticaria from mango fruit in food-allergic patients via Man i 1 or Man i 2 food allergens
- Severity of sap/peel reaction correlates with degree of poison-ivy/oak sensitization
Systemic
- IgE-mediated anaphylaxis to mango fruit is documented but uncommon
- Type IV systemic spreading dermatitis in heavily urushiol-sensitized individuals after mango contact
- Systemic IgE reaction to mango pollen specifically is not documented in the clinical literature
Mango is in the same family as poison ivy — when a patient says they're allergic to mango trees, I ask about poison-ivy history first and consider urushiol contact dermatitis before any pollen workup. The Anacardiaceae connection changes the diagnostic and management pathway entirely.
When & Where Mango Blossom Peaks
Allergen intensity by month and by state. Useful for timing SCIT start dates and travel planning.
12-Month Intensity
Mango bloom: March–May in Florida and California. Pollen is not airborne. Contact dermatitis risk is year-round for those handling fresh mango fruit or peeling the skin.· Insect-pollinated — no aeroallergen season. Urushiol contact risk is year-round wherever fresh mango is handled.
US Exposure Map
0 high-intensity statesWhat Mango Blossom Cross-Reacts With
Patients sensitized to one allergen often react to others sharing similar proteins. This map shows the documented molecular overlaps.
Mango cross-reactivity is driven primarily by urushiol chemistry shared across Anacardiaceae — not by pollen allergens. Patients with poison-ivy history are at highest risk for mango sap and peel reactions.
Mango–Poison Ivy–Cashew Dermatitis Syndrome
Mango sap and peel contain urushiol-related catechols cross-reactive with poison ivy (Toxicodendron radicans) and cashew (Anacardium occidentale). Patients with prior poison-ivy dermatitis can develop perioral dermatitis 24–72 hours after eating mango peel. Eating the flesh (without peel) is generally tolerated because urushiol content is highest in the sap and peel.
Is SCIT Right for Your Mango Blossom Allergy?
If you suspect mango blossom allergy, these questions help distinguish the true mechanism — contact dermatitis, food allergy, or pollen aeroallergy.
Have you ever had a documented poison ivy or poison oak dermatitis reaction?
The Mango Blossom SCIT Protocol
SCIT is not routinely indicated for mango blossom pollen. Curex IgE testing distinguishes true mango food allergy from urushiol contact dermatitis and from co-occurring aeroallergens that may share the tropical-region exposure — the essential first step before any treatment decision. Management of mango-related allergy targets the actual mechanism: patch testing and avoidance for urushiol contact dermatitis, or oral immunotherapy under allergist supervision for confirmed IgE food allergy.
SCIT build-up is not indicated for mango pollen allergy. If the patient has co-occurring true aeroallergen sensitization (grass, ragweed in FL/CA), SCIT build-up for those confirmed sensitizers follows the standard schedule.
SCIT maintenance targeting mango pollen is not supported. Urushiol contact dermatitis is managed with barrier protection and topical/systemic corticosteroids. Food allergy to mango flesh is managed with avoidance and epinephrine prescription for severe reactions.
Not applicable for mango blossom SCIT.
Extract Concentration Ladder
You progress through each vial during build-up. Concentration increases ~10x per step.
Ready to skip the surprise bills?
See if at-home allergy shots fit your allergies — a 2-minute quiz, designed by board-certified allergists, with flat monthly pricing and no clinic visits.
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Mango Blossom SCIT Side Effects
SCIT is not indicated for mango blossom. The clinical risks relevant to mango allergy patients are urushiol contact dermatitis (rash, itch, blistering — Type IV) and IgE food allergy (urticaria, anaphylaxis from mango flesh).
Local reactions
2 documentedSystemic reactions
2 documentedPatients with confirmed IgE-mediated mango food allergy should carry an epinephrine auto-injector at all times and have a written anaphylaxis action plan. Urushiol contact reactions are treated with high-potency topical corticosteroids, barrier creams, and oral prednisone for severe spreading reactions.
SCIT vs Alternatives for Mango Blossom
Management of mango-related allergy depends entirely on the mechanism — urushiol contact dermatitis, food allergy, or co-occurring aeroallergen — not on pollen SCIT.
| Criterion | Avoidance (peel/sap)Best | Topical steroids (contact Dx) | Epinephrine (food allergy) | SCIT (co-occurring aeroallergen) |
|---|---|---|---|---|
| Effectiveness | Very effective for contact Dx | Good for acute flares | Life-saving for anaphylaxis | Strong for true aeroallergens |
| 5-yr cost | Minimal | $100–$300/yr | $300–$900/yr | $3,500–$15,000 |
| Duration | Indefinite | Per reaction | Indefinite carry | 3–5 years |
| Convenience | Gloves, avoid peel | Apply to affected area | Auto-injector on person | At-home self-injection; weekly then monthly |
| Safety | No medical risk | Generally safe | No risk if used correctly | Zoom-supervised dosing + prescribed epi |
| Lasting effect | Ongoing behavior change | No lasting desensitization | No lasting change | 7–12 yrs post-course |
Avoidance (peel/sap)Best
Topical steroids (contact Dx)
Epinephrine (food allergy)
SCIT (co-occurring aeroallergen)
For patients with mango allergy complaints, accurate diagnosis determines the management path. Curex IgE testing distinguishes true mango food allergy from urushiol contact dermatitis and identifies any co-occurring regional aeroallergens; immunotherapy is not appropriate for mango blossom pollen specifically, but for confirmed co-occurring true aeroallergens (grass, ragweed) Curex delivers it as an at-home allergy shot at $129/month — a serum compounded under USP <797>, with the first dose and every dose change supervised live over Zoom, a prescribed epinephrine auto-injector confirmed on hand, and allergist-overseen escalation.
What Mango Blossom SCIT Actually Costs
Patch testing for urushiol contact allergy (CPT 95044–95052) and specific IgE testing for mango food allergens (Man i 1, Man i 2) are covered diagnostic codes. SCIT for mango pollen specifically is not a covered indication. SCIT for confirmed co-occurring regional aeroallergens is covered under standard allergy immunotherapy benefit codes when prescribed by a board-certified allergist.
Cost range varies by deductible, co-insurance, and clinic.
Verify these codes with your insurer to confirm coverage.
Flat monthly subscription — includes consult, prescription, and at-home dosing for sublingual immunotherapy.
See if you qualifyStop guessing about your mango blossom allergy. Get a plan.
Take Curex’s 3-minute allergy quiz. A board-certified allergist will review your symptoms and recommend the right immunotherapy path for you — shots or drops.
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Mango Blossom SCIT — Frequently Asked
Quick answers to the questions patients ask most before starting treatment.
Mango (Mangifera indica) is a member of the Anacardiaceae family — the same botanical family as poison ivy (Toxicodendron radicans), poison oak, poison sumac, cashew, and pistachio. The sap, skin, and peel of mango fruit contain urushiol-related catechols that are chemically cross-reactive with poison ivy urushiol. If you have ever had poison ivy dermatitis, your immune system has developed Type IV delayed hypersensitivity to urushiol-like compounds — and mango peel exposure can trigger the same rash mechanism, typically appearing 24–72 hours after contact. This is not an IgE-mediated allergy and is not treated with allergy shots. Avoiding the peel and wearing gloves when handling whole mangoes dramatically reduces exposure. The mango flesh itself has much lower urushiol content and is usually well tolerated.
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.