Conditions We Treat
Seasonal Allergy and Allergic Rhinitis Care for Adults
Seasonal allergies, also called hay fever or allergic rhinitis, happen when the immune system reacts to pollen and other airborne allergens, causing sneezing, a runny or congested nose, and itchy, watery eyes. Avita MD primary care providers diagnose and treat allergic rhinitis for adults across the Bay Area.
Medically reviewed by Dr. Patricia Sitnitsky, M.D. ยท July 2026
Seasonal allergies, also called hay fever or allergic rhinitis, happen when the immune system reacts to airborne allergens like pollen as if they were harmful. Each spring, summer, and fall, trees, weeds, and grasses release tiny pollen grains into the air, and breathing them in can trigger sneezing, a runny or congested nose, and itchy, watery eyes. Avita MD primary care providers diagnose and treat seasonal allergies for adults in Los Altos, Mountain View, and Los Gatos, helping you control symptoms so they do not disrupt your days.
What are the symptoms of seasonal allergies?
Allergic rhinitis symptoms tend to appear soon after exposure to a trigger and often follow a predictable seasonal pattern. Common signs include:
- Sneezing with a runny or congested nose
- Itchy eyes, nose, and throat
- Red and watery eyes
- Postnasal drip and cough
- Dark circles under the eyes
Unlike a cold, seasonal allergies do not cause a fever and can last for weeks as long as the trigger is in the air.
How does Avita MD diagnose and treat seasonal allergies?
At Avita MD, diagnosis begins with your symptom pattern, history, and a physical exam, which is often enough to identify allergic rhinitis and distinguish it from an infection. Same-day and next-day appointments mean you can be seen when symptoms are at their worst. We help you connect symptoms to specific seasons and triggers so you can plan ahead.
Knowing what tends to be in the air by season helps you prepare:
| Season | Common pollen triggers |
|---|---|
| Spring | Tree pollen |
| Summer | Grass pollen |
| Late summer and fall | Weed pollen, including ragweed |
| Year-round and damp seasons | Mold spores |
Treatment combines reducing exposure with medication. Practical steps include staying indoors on high-pollen days, keeping windows closed, and showering after time outdoors. Your provider may recommend antihistamines, steroid nasal sprays, or other medicines and will tailor the plan to your symptoms. We track what works for you over time through longitudinal records and adjust as needed. When allergies are severe, persistent, or tied to asthma, Avita MD coordinates referral to an allergist for testing or immunotherapy and manages the follow-up.
When should you see a doctor about seasonal allergies?
Make an appointment if over-the-counter medicines are not controlling your symptoms, if symptoms last for weeks or disrupt your sleep, work, or daily life, or if you have allergies every year and want a steady plan. You should also be seen if allergy symptoms come with wheezing, chest tightness, or shortness of breath, which can signal allergy-related asthma that needs its own treatment. Steady allergy care helps you stay comfortable and active through every pollen season.
Related care at Avita MD
This page is for general educational purposes and is not medical advice. Individual results vary. Talk with an Avita MD provider about your specific health needs. If you think you are having a medical emergency, call 911.
Sources & references
This page draws on guidance from the following authoritative medical and public-health organizations.
- MedlinePlus: Hay Fever (Allergic Rhinitis) — U.S. National Library of Medicine (NIH)
- MedlinePlus: Allergy — U.S. National Library of Medicine (NIH)
Seasonal allergies (allergic rhinitis): Frequently Asked Questions
What causes seasonal allergies?
Seasonal allergies occur when the immune system overreacts to airborne allergens, most often pollen from trees, grasses, and weeds released each spring, summer, and fall. Mold spores can also trigger seasonal symptoms.
How are seasonal allergies treated?
Treatment usually combines avoiding triggers with medicines such as antihistamines, steroid nasal sprays, and decongestants. For persistent or severe allergies, your provider may discuss allergy testing or referral for immunotherapy, sometimes called allergy shots.
How can I tell allergies from a cold?
Allergies tend to cause itchy eyes and nose, clear nasal drainage, and symptoms that last for weeks and follow a pollen season, with no fever. A cold often brings body aches or fever and clears within about a week or two.
Can a primary care provider treat allergies?
Yes. Primary care providers diagnose allergic rhinitis from your symptoms and history, recommend and prescribe treatment, and manage symptoms over time. Avita MD coordinates referral to an allergist when testing or immunotherapy is needed.
When do seasonal allergies need medical attention?
See a provider if symptoms are not controlled by over-the-counter medicine, last for weeks, disrupt sleep or daily life, or are paired with wheezing or shortness of breath, which can signal allergy-related asthma.
Talk With a Primary Care Provider
Book online or call (408) 495-5770. Same-day and next-day appointments are often available in Los Altos, Mountain View, and Los Gatos.