The only treatment proven to change how your immune system responds to allergens, potentially eliminating allergies rather than just masking symptoms, is immunotherapy. Everything else, from antihistamines to nasal sprays, manages the reaction after it starts. Immunotherapy retrains your immune system to stop overreacting in the first place, and for many people, the results last years after treatment ends.
That said, “getting rid of allergies” usually involves a combination of approaches: reducing your exposure, controlling symptoms with medication, and in some cases pursuing immunotherapy for a longer-term fix. Here’s how each strategy works and what you can realistically expect.
Immunotherapy: The Closest Thing to a Cure
Immunotherapy works by exposing your body to tiny, gradually increasing amounts of the substance you’re allergic to. Over time, your immune system learns to tolerate it instead of launching a full-blown allergic response. It comes in two forms: allergy shots (injected under the skin at a doctor’s office) and sublingual tablets (dissolved under the tongue at home).
With allergy shots, the process has two phases. The buildup phase takes 3 to 6 months, during which you receive injections one to two times per week at increasing doses. Once you reach your target dose, you enter the maintenance phase, getting shots every few weeks for 3 to 5 years. It’s a real time commitment, but the payoff is significant. Large real-world studies show that people who stick with the full course see meaningfully greater reductions in allergy medication use compared to those who stop early, with the gap widening at the five-year mark.
Sublingual tablets are FDA-approved for four specific triggers: Timothy grass pollen, a five-grass pollen mix, ragweed, and dust mites. You take a tablet daily at home, which is more convenient than regular office visits. Clinical data shows sublingual tablets and allergy shots produce similar reductions in symptoms and medication use over time.
Immunotherapy isn’t instant relief. Most people notice improvement within the first year, but the full benefit builds over the entire treatment course. The key advantage over every other option is durability: many people maintain their improvement for years after stopping treatment.
Medications That Control Symptoms
While immunotherapy works in the background, most people still need day-to-day symptom control, especially during high-pollen seasons. The most effective options target different parts of the allergic response.
Antihistamines block the chemical your body releases during an allergic reaction. Second-generation versions (cetirizine, loratadine, fexofenadine) work without causing significant drowsiness and last 24 hours per dose. They’re best for sneezing, itching, and runny nose but do less for congestion.
Nasal corticosteroid sprays (fluticasone, budesonide) reduce inflammation inside the nasal passages and are widely considered the single most effective treatment for nasal allergy symptoms. They take a few days of consistent use to reach full effect, so starting them a week or two before your worst season pays off. For eye symptoms, antihistamine eye drops work faster than oral antihistamines at relieving itchy, watery eyes.
These medications don’t change your underlying allergy. They suppress your body’s reaction for as long as you take them. Stop, and symptoms return. That’s the fundamental difference between symptom management and immunotherapy.
Reducing Allergens in Your Home
Lowering your exposure to triggers won’t eliminate your allergy, but it can dramatically reduce how often and how severely your symptoms flare. For indoor allergens like dust mites, pet dander, and mold, a few changes make a measurable difference.
HEPA filters capture at least 99.97% of airborne particles including pollen, mold spores, and pet dander. Running a portable HEPA air purifier in your bedroom, where you spend roughly a third of your day, gives you hours of cleaner air. Pair it with keeping windows closed during high-pollen periods.
If dust mites are a trigger, your mattress and pillows are ground zero. Allergen-proof encasements with a pore size under 10 micrometers block dust mite allergens completely. Research published in the Journal of Allergy and Clinical Immunology found that woven fabrics with pore sizes around 6 micrometers still allow airflow while preventing any allergen from passing through. Look for encasements that specify their pore size rather than just labeling themselves “hypoallergenic.” Washing bedding weekly in hot water (at least 130°F) kills mites that accumulate on sheets and pillowcases.
Nasal Rinsing: Simple but Effective
Flushing your nasal passages with saline physically washes out pollen, dust, and mucus. It’s one of the simplest interventions and provides noticeable relief for many people, especially when used after outdoor exposure. Neti pots, squeeze bottles, and powered irrigators all work.
The one critical safety rule: never use plain tap water. Tap water can contain organisms that are harmless if swallowed but dangerous if introduced into nasal passages. The CDC recommends using distilled or sterile water, or tap water that’s been brought to a rolling boil for one minute and then cooled. At elevations above 6,500 feet, boil for three minutes. If neither option is available, you can disinfect water with a few drops of unscented household bleach (4 to 5 drops per quart, depending on concentration) and let it stand for at least 30 minutes.
Newer Biologic Treatments for Severe Cases
For people whose allergies are severe and don’t respond well to standard treatments, injectable biologic medications offer another option. These are lab-made antibodies that block specific molecules in the allergic cascade. Some target the antibody your body produces during allergic reactions (IgE), while others block inflammatory signaling molecules that drive the allergic response.
Biologics are typically reserved for moderate-to-severe allergic conditions like chronic hives, severe asthma with an allergic component, or nasal polyps tied to allergic inflammation. They’re administered by injection, usually every two to four weeks, and require a prescription. Newer biologics in development target upstream triggers of the allergic pathway, which may eventually offer broader relief across multiple allergic conditions.
What Doesn’t Work
Local honey is one of the most persistent home remedies for seasonal allergies. The idea is that trace amounts of pollen in honey might desensitize you naturally. A randomized controlled trial tested this directly, assigning participants to locally collected unfiltered honey, nationally sourced pasteurized honey, or a corn syrup placebo. Neither honey group experienced any more symptom relief than the placebo group. The pollen in honey comes primarily from flowers (carried by bees), while most seasonal allergies are triggered by wind-borne pollen from trees, grasses, and weeds, which are entirely different species.
Figuring Out Your Specific Triggers
Before you can effectively treat allergies, you need to know exactly what you’re reacting to. The two standard tests are skin prick testing and blood tests that measure allergen-specific antibodies. In skin prick testing, tiny amounts of common allergens are applied to your skin with a small scratch. A raised bump within 15 to 20 minutes indicates a reaction. Blood tests measure the same immune response through a blood draw.
Both tests have trade-offs. Sensitivity varies widely depending on the allergen being tested, ranging from 25% to 95%, while specificity (correctly identifying what you’re not allergic to) is consistently higher at 78% to 97%. Skin prick testing gives results in minutes and is generally considered the first-line option. Blood tests are useful when skin conditions or medications make skin testing unreliable.
Knowing your exact triggers matters because it shapes every decision that follows: which allergens to include in immunotherapy, what environmental controls to prioritize, and when during the year to be most aggressive with medication. A vague sense that “pollen bothers me” is far less useful than knowing you react specifically to oak tree pollen and dust mites.