Spring allergies hit hardest from mid-March through early April, when tree pollen counts spike and millions of people start sneezing, itching, and congesting. The good news: a combination of timing your medications right, reducing your pollen exposure, and understanding what triggers your symptoms can make a real difference in how you feel this season. Here’s what actually works.
Why Spring Allergies Are Getting Worse
Tree pollen season runs from February through the end of May. Early producers like juniper, maple, and elm start things off, followed by pine, oak, hickory, and ash. Production begins slowly, but by mid-March pollen counts rise sharply. The peak typically lands at the end of March and into the first week of April before tapering off.
If your spring allergies feel worse than they used to, you’re not imagining it. Research from the American Lung Association shows the pollen season in the U.S. is roughly three weeks longer now than it was 50 years ago, driven by warmer temperatures and earlier springs. That means more days of exposure and higher cumulative pollen loads each year.
How to Read Pollen Counts
Pollen counts are measured in grains per cubic meter of air, and the thresholds vary by pollen type. For tree pollen, a count of 1 to 14 is low, 15 to 89 is moderate, and anything above 90 is high. Grass pollen triggers symptoms at much lower numbers: a count above 20 is already considered high. At low levels, only the most sensitive people notice symptoms. At high levels, most people with any pollen sensitivity will feel it.
Check your local pollen forecast daily through sites like pollen.com or your local weather service. On high-count days, plan outdoor activities for late afternoon or after rain, when pollen levels tend to drop. Mornings are typically the worst.
Medications That Work Best
Three main classes of over-the-counter medication cover most spring allergy symptoms, and they work differently enough that combining them often helps more than relying on just one.
Antihistamines
Antihistamines block histamine, the chemical your immune system releases during an allergic reaction. Non-drowsy options like cetirizine (Zyrtec), loratadine (Claritin), and fexofenadine (Allegra) are the go-to choices for daytime relief. Older antihistamines like diphenhydramine (Benadryl) work too, but they cause significant drowsiness. Antihistamine eye drops like ketotifen (Zaditor) target itchy, watery eyes specifically.
Nasal Steroid Sprays
Steroid nasal sprays like fluticasone (Flonase) and triamcinolone (Nasacort) reduce the inflammation behind congestion, sneezing, and a runny nose. They’re widely considered the single most effective treatment for nasal allergy symptoms, but here’s the catch: they take several days of consistent use to reach full effect. Start using them a week or two before your symptoms typically begin rather than waiting until you’re already miserable.
Decongestants
Decongestant sprays like oxymetazoline (Afrin) provide fast relief from a stuffed nose, but you should not use them for more than three consecutive days. Longer use causes rebound congestion that’s worse than what you started with. Oral decongestants like pseudoephedrine (Sudafed) don’t carry that risk but can raise blood pressure and interfere with sleep.
For many people, the best daily approach is a nasal steroid spray combined with a non-drowsy antihistamine pill, with a decongestant reserved for the worst days.
Saline Rinses: Simple and Effective
Rinsing your nasal passages with saline solution physically flushes out pollen and mucus. A meta-analysis of six studies found that saline irrigation significantly improved allergy symptom scores compared to no treatment, with benefits lasting up to eight weeks. You can use a neti pot or a squeeze bottle. Use distilled or previously boiled water (never straight tap water) to prepare the solution, and clean the device after each use.
Saline rinses are well tolerated and safe for daily use throughout the season. They work well as a supplement to medication, though the evidence is less clear on whether adding saline to an already effective medication regimen provides additional benefit.
Reducing Pollen in Your Home
Pollen clings to your skin, hair, and clothing all day. Without a few simple habits, you end up bringing the outdoors into your bedroom and breathing in allergens for eight hours while you sleep.
- Shower before bed. A hot shower rinses pollen off your skin and out of your hair. Your hair’s natural oils are especially good at trapping pollen particles, which then transfer to your pillow. If you skip the shower, at least wash or thoroughly rinse your hair, or wrap it before sleeping.
- Change clothes when you come inside. Don’t sit on your couch or lie on your bed in the same clothes you wore outdoors. Toss them in a hamper away from your sleeping area.
- Keep windows closed on high-pollen days. It’s tempting to let in the spring air, but open windows invite pollen directly into your living space.
- Use the right air filter. The American College of Allergy, Asthma & Immunology recommends disposable furnace filters with a MERV rating of 11 to 13. These catch pollen, pet allergens, and mold without restricting airflow. Standalone HEPA air purifiers in the bedroom can also help.
- Dry laundry indoors. Hanging sheets and clothes outside to dry turns them into pollen collectors.
When Raw Fruits Make Your Mouth Itch
If eating a fresh apple or peach in spring makes your lips tingle or your throat itch, you’re likely experiencing pollen food allergy syndrome. Your immune system mistakes proteins in certain raw fruits and vegetables for the tree pollen you’re allergic to. Birch pollen, one of the most common spring triggers, cross-reacts with apples, cherries, peaches, pears, plums, carrots, celery, almonds, hazelnuts, and kiwi.
Cooking these foods breaks down the problematic proteins, so apple pie or cooked carrots typically cause no reaction. The symptoms are usually mild and limited to the mouth and throat. If you notice them getting worse or spreading beyond your mouth, that’s worth discussing with an allergist.
Immunotherapy for Long-Term Relief
If spring allergies significantly affect your quality of life despite medications, allergy immunotherapy (allergy shots) can retrain your immune system to stop overreacting to pollen. The process involves gradually increasing doses of your specific allergens over several years. About 80% of people see significant improvement in their symptoms, and roughly 60% experience permanent benefits after three to five years of treatment, according to Cleveland Clinic data.
The commitment is real: regular injections for up to five years, with visits typically weekly at first and then monthly. Sublingual tablets (dissolved under the tongue at home) are an alternative for certain pollen allergies, though they cover fewer allergen types. Either option requires a formal allergy test first to identify your specific triggers.
A Practical Weekly Routine
Putting this all together, a realistic approach for someone with moderate spring allergies looks like this: start a nasal steroid spray in early March before symptoms peak, take a daily non-drowsy antihistamine on days when pollen counts are moderate or above, shower and change clothes after spending time outdoors, and run your HVAC with a MERV 11 or higher filter. On particularly bad days, add a saline rinse in the evening. Track which weeks are worst for you each year so you can start preparing earlier the following spring.