What to Do for Allergies: From Sprays to Shots

The most effective way to help with allergies is a layered approach: reduce your exposure to allergens, use the right medications at the right time, and consider long-term treatments if your symptoms keep coming back year after year. Most people get significant relief from a combination of environmental changes and over-the-counter treatments, without needing a prescription.

Start With a Nasal Steroid Spray

If you’re only going to do one thing, make it an over-the-counter nasal corticosteroid spray. A large systematic review comparing nasal treatments to oral ones found that intranasal medications were more effective at reducing total nasal symptom scores, with a 70% probability of clinically meaningful improvement over oral medications alone. Nasal sprays work faster and target the tissue where inflammation actually happens: the lining of your nose and sinuses.

The key with nasal steroid sprays is consistency. They don’t work like a decongestant that kicks in within minutes. You need to use them daily, and it can take several days of regular use before you notice the full benefit. During allergy season, start using the spray before your symptoms ramp up. If you wait until you’re already miserable, you’re playing catch-up.

Oral antihistamines still have a role, especially for itchy eyes, sneezing, and hives. The newer, non-drowsy versions are effective for mild symptoms and work well as an add-on to a nasal spray when your allergies are moderate or severe.

Reduce Allergens Inside Your Home

Medication works better when your allergen load is lower. A true HEPA filter can theoretically remove at least 99.97% of airborne particles like dust, pollen, mold spores, and pet dander down to 0.3 microns in size. Running one in your bedroom, where you spend roughly a third of your day, makes a noticeable difference for many people. Portable units work fine for single rooms, but make sure the filter is rated for the square footage of the space.

Beyond air filtration, a few changes go a long way. Encase your pillows and mattress in allergen-proof covers to limit dust mite exposure while you sleep. Wash bedding weekly in hot water. Keep indoor humidity below 50%, since dust mites and mold both thrive in moisture. If you have pets that go outside, wipe down their paws and fur with a damp cloth when they come back in, because they carry pollen indoors on their coats.

Manage Your Outdoor Exposure

Pollen counts fluctuate throughout the day, and timing your outdoor activity can reduce how much you inhale. Counts tend to be lowest in the early morning hours before noon, then rise through the afternoon. On high-pollen days, keep your car and house windows closed and run the air conditioner on the recirculate setting instead of pulling in outside air.

When you do spend time outdoors during peak season, a few habits help:

  • Take your allergy medication before going outside. Don’t wait until symptoms start. Antihistamines and nasal sprays work best when they’re already in your system.
  • Wear sunglasses. They create a physical barrier that keeps pollen out of your eyes.
  • Shower when you get home. Pollen settles into your hair, skin, and clothes. Rinsing off before sitting on your couch or getting into bed keeps you from breathing it in all evening.
  • Remove your shoes at the door. You track pollen and outdoor allergens through your house on the soles of your shoes.

Change or clean your home air filters regularly, especially during allergy season. A clogged filter does almost nothing.

Try Nasal Irrigation

Rinsing your nasal passages with saline solution is one of the simplest and cheapest ways to ease allergy symptoms. It physically flushes out pollen, dust, and mucus from your nasal lining, reducing the inflammatory response. Studies show that both children and adults with allergies who use nasal irrigation experience improved symptoms for up to three months.

You can use a neti pot, squeeze bottle, or bulb syringe. Use distilled or previously boiled water (never tap water straight from the faucet) mixed with a saline packet. Doing this once or twice daily while you’re symptomatic is safe and effective. Some people irrigate a few times a week even when they’re feeling fine, as a preventive measure against flare-ups.

Consider Butterbur for a Non-Drowsy Option

If you prefer a plant-based approach, butterbur extract has the strongest evidence of any herbal allergy treatment. A randomized, double-blind study of 330 patients found that butterbur extract was as effective as a standard non-drowsy antihistamine at reducing hay fever symptoms, without causing sedation. It works by blocking some of the same inflammatory chemicals that drive allergic reactions.

One important note: only use commercially prepared butterbur supplements labeled “PA-free,” meaning the naturally occurring liver-toxic compounds called pyrrolizidine alkaloids have been removed. Raw or unprocessed butterbur is not safe to take.

Immunotherapy for Lasting Relief

If you’ve tried medications and environmental controls and still struggle every season, immunotherapy is the only treatment that changes how your immune system responds to allergens rather than just masking symptoms. It comes in two forms: allergy shots given at a doctor’s office, or sublingual tablets that dissolve under your tongue at home.

Both approaches work by gradually exposing your immune system to increasing amounts of the allergen until it stops overreacting. Clinical studies show an approximate 30% to 40% reduction in both symptoms and the need for rescue medications over three years of treatment. More importantly, the benefits persist after you stop. Research using rigorous double-blind methods found a 20% to 30% symptom reduction lasting at least two years after treatment ended, and three to four years of immunotherapy produced improvements that held up for three or more years after stopping.

The commitment is real. Allergy shots typically require weekly visits during a buildup phase, then monthly maintenance injections for three to five years. Sublingual tablets are daily but can be taken at home after the first dose is supervised. For people with moderate to severe allergies that interfere with sleep, work, or quality of life, immunotherapy is often worth the investment because it’s the closest thing to a long-term fix.

Putting It All Together

Mild allergies often respond well to a single strategy, like a daily nasal steroid spray or keeping windows closed during peak pollen. Moderate allergies usually need a combination: nasal spray plus an oral antihistamine, nasal irrigation, and some environmental controls at home. Severe or year-round allergies that don’t respond to this layered approach are good candidates for immunotherapy. The goal isn’t to do everything on this list at once. Start with the interventions that match the severity of your symptoms and add more if you need them.