Seasonal Allergy Symptoms: Allergies vs. a Cold

What are the typical symptoms of seasonal allergies?

Seasonal allergic rhinitis produces a recognizable cluster of symptoms:

• Repeated sneezing, especially in the morning
• Clear, watery nasal discharge (runny nose)
• Nasal congestion and pressure
• Itchy or watery eyes (allergic conjunctivitis)
• Itchy throat, palate, or ears
• Postnasal drip leading to a mild cough or sore throat
• Fatigue, often from poor sleep caused by congestion

Symptoms appear during specific pollen seasons and resolve when that pollen is no longer present. Many people can predict their worst weeks based on which season repeatedly affects them 1Ref 1Seidman MD, Gurgel RK, Lin SY, Schwartz SR, Baroody FM, Bonner JR, et al. (2015).Clinical Practice Guideline: Allergic Rhinitis.Seasonal allergic rhinitis diagnosis, symptom pattern, distinction from cold, pollen seasons, when testing is indicated.

How do I tell seasonal allergies apart from a cold?

This is one of the most common questions, and there are reliable distinguishing features:

| Feature | Seasonal allergies | Common cold | |---|---|---| | Duration | Weeks (entire pollen season) | 7–10 days | | Nasal discharge | Clear and watery throughout | May turn thick or colored | | Itchy eyes | Very common | Uncommon | | Sneezing | Frequent, often in bursts | Present but less prominent | | Fever | Never | Occasionally (low-grade) | | Sore throat | Mild (from postnasal drip) | Often more pronounced | | Seasonal pattern | Same weeks every year | Random timing |

If you notice symptoms returning at the same time of year and including prominent eye itching, seasonal allergies are the far more likely explanation. If you have fever, body aches, or thick colored discharge from the start, a cold or infection is more likely 1Ref 1Seidman MD, Gurgel RK, Lin SY, Schwartz SR, Baroody FM, Bonner JR, et al. (2015).Clinical Practice Guideline: Allergic Rhinitis.Seasonal allergic rhinitis diagnosis, symptom pattern, distinction from cold, pollen seasons, when testing is indicated.

What are the main pollen seasons?

Spring (February–May in most of the US): Tree pollens are dominant — oak, birch, maple, cedar, and ash are among the most allergenic. Spring is often the most intense season for people sensitive to trees.

Late spring to summer (May–July): Grass pollen is the major trigger. Timothy, bermuda, and Kentucky bluegrass are common culprits. Grass season overlaps with the tail end of tree season in many regions.

Late summer to fall (August–October): Ragweed dominates in most of the eastern and central US. This is the fall allergy season many people recognize.

Some people are sensitive to only one season; others react to two or three, making it feel like allergies are nearly constant from February through October 1Ref 1Seidman MD, Gurgel RK, Lin SY, Schwartz SR, Baroody FM, Bonner JR, et al. (2015).Clinical Practice Guideline: Allergic Rhinitis.Seasonal allergic rhinitis diagnosis, symptom pattern, distinction from cold, pollen seasons, when testing is indicated2Ref 2Bousquet J, Schünemann HJ, Togias A, Bachert C, Erhola M, Hellings PW, et al. (2020).Next-generation Allergic Rhinitis and Its Impact on Asthma (ARIA) guidelines for allergic rhinitis based on Grading of Recommendations Assessment, Development and Evaluation (GRADE) and real-world evidence.Treatment hierarchy for seasonal allergic rhinitis; intranasal corticosteroids as first-line; pre-season treatment strategy.

Why are some allergy seasons worse than others?

Year-to-year variation in pollen levels is driven by weather. Warm, dry, and windy days produce high pollen counts; cool, wet, or rainy weather washes pollen from the air and keeps counts low. A mild winter followed by warm spring conditions can lead to an especially heavy tree pollen season. Most weather apps now include daily pollen count forecasts by category (tree, grass, weed) — tracking these helps you anticipate your worst days.

What treatment options are available for seasonal allergies?

Intranasal corticosteroid sprays (fluticasone, budesonide, mometasone — several are available over the counter) are the most effective single treatment for nasal symptoms. They work best when started before the season rather than after symptoms become severe 2Ref 2Bousquet J, Schünemann HJ, Togias A, Bachert C, Erhola M, Hellings PW, et al. (2020).Next-generation Allergic Rhinitis and Its Impact on Asthma (ARIA) guidelines for allergic rhinitis based on Grading of Recommendations Assessment, Development and Evaluation (GRADE) and real-world evidence.Treatment hierarchy for seasonal allergic rhinitis; intranasal corticosteroids as first-line; pre-season treatment strategy.

Oral antihistamines reduce sneezing and itching but are less effective for nasal blockage. Non-sedating options (such as loratadine or cetirizine) are preferred for daily use.

Nasal antihistamine sprays (azelastine) work faster than oral antihistamines and are useful for breakthrough symptoms.

Allergen immunotherapy (shots or sublingual tablets) is the only treatment that changes the underlying immune response rather than just suppressing symptoms. It requires a commitment of three to five years but can provide lasting relief 3Ref 3Gurgel RK, Baroody FM, Damask CC, Mims JW, Ishman SL, Baker DP Jr, et al. (2024).Clinical Practice Guideline: Immunotherapy for Inhalant Allergy.Immunotherapy as disease-modifying treatment for seasonal allergic rhinitis; duration of therapy.

For people who know which pollen drives their symptoms, timing treatment to start one to two weeks before the season begins gives the best control.

When is testing worthwhile?

If your symptom pattern is already clear — the same weeks every spring — you may not need formal testing to start treatment. Testing is most useful when:

• You are not sure which season or allergen is responsible
• Symptoms are severe and immunotherapy is being considered (knowing exactly what you are allergic to is required)
• Symptoms persist year-round, suggesting additional indoor allergens

A Gale primary care clinician can assess your pattern, confirm diagnoses when needed, and refer you to an allergist for testing or immunotherapy 1Ref 1Seidman MD, Gurgel RK, Lin SY, Schwartz SR, Baroody FM, Bonner JR, et al. (2015).Clinical Practice Guideline: Allergic Rhinitis.Seasonal allergic rhinitis diagnosis, symptom pattern, distinction from cold, pollen seasons, when testing is indicated.