Hay fever symptoms include sneezing, a runny or stuffy nose, itchy watery eyes, an itchy nose or throat, postnasal drip, cough, and fatigue. It is allergic rhinitis, an immune reaction to pollen, so it does not cause a true fever. Symptoms can be seasonal or year-round.
Hay fever is the everyday name for allergic rhinitis, and despite the name it has nothing to do with hay or fever. It is an immune reaction to harmless pollen proteins, not an infection. To keep the many symptoms straight, it helps to use one simple framework: the Nose-Eyes-Whole-Body checklist, which groups what you feel by where you feel it. If you want the wider picture first, see what is hay fever.
Common Hay Fever Symptoms
Most hay fever symptoms cluster in the nose and eyes, with a few that affect the whole body. The most common signs are sneezing, a runny or stuffy nose, and itchy, watery, or red eyes — the eye reaction is known as allergic conjunctivitis. Many people also notice itching in the nose, palate, or throat, along with postnasal drip, cough, and fatigue.
Hay Fever Symptoms — Nose, Eyes & Whole Body
Where
🌼 Symptom
What it feels like
Nose
Sneezing; runny or stuffy nose; itchy nose
Repeated sneezing with clear discharge and congestion.
Eyes
Itchy, watery, or red eyes
Allergic conjunctivitis — often the giveaway for allergy.
Throat
Postnasal drip; cough; itchy palate or throat
Mucus dripping down the throat that triggers a cough.
Whole body
Fatigue
Tiredness from congestion and disturbed sleep — but no true fever.
Hay fever symptoms grouped by where you feel them; note the absence of a true fever.
These symptoms can be seasonal, driven by pollen, or perennial (year-round), driven by indoor triggers such as dust mites or pet dander. Seasonal patterns follow tree pollen in spring, grass pollen in late spring and summer, and weed pollen such as ragweed from late summer into fall. Allergic rhinitis is common: it affects an estimated 10 to 30 percent of adults and up to 40 percent of children, and roughly 81 million Americans were diagnosed with seasonal allergic rhinitis in 2021. For relief options, see allergy relief.
Hay Fever vs Cold Symptoms
Hay fever and a common cold share sneezing and a runny nose, which is why they are so easy to confuse. The clearest split comes from a few tell-tale signs. Hay fever brings itchy eyes, clear nasal discharge, and no fever, and it tends to start suddenly on exposure to pollen and last for weeks or follow a season. A cold may include a mild fever, body aches, and thicker discharge, usually clears in about 7 to 10 days, and is contagious.
Because hay fever is an allergic reaction rather than an infection, it does not usually cause a true fever — a genuine fever points more toward a cold or a sinus infection. We cover that specific question in can allergies cause fever, and compare the two side by side in pollen allergy vs cold.
When Symptoms Mean Asthma
Hay fever does not stay in the nose for everyone. It can trigger or worsen asthma and can also aggravate eczema. When your usual sneezing and itchy eyes are joined by chest symptoms — wheezing, chest tightness, coughing, or shortness of breath — that combination may signal asthma rather than hay fever alone, and it deserves medical attention.
When to See a Doctor
Hay fever is usually manageable, but some symptoms need professional care. Seek medical advice if any of the following apply:
You have wheezing, chest tightness, coughing, or shortness of breath, which may signal asthma
Symptoms are severe, persistent, or hard to control
You run a true fever, which points to an infection rather than allergies
You want a clear diagnosis — an allergist can confirm your triggers with a skin prick test or a specific IgE blood test
This article is educational and is not a substitute for a diagnosis from a qualified clinician.
Frequently Asked Questions
What are the most common hay fever symptoms?
The most common hay fever symptoms are sneezing, a runny or stuffy nose, and itchy, watery, or red eyes. Many people also have an itchy nose, palate, or throat, along with postnasal drip, cough, and fatigue. Hay fever is allergic rhinitis, an immune reaction to harmless pollen proteins rather than an infection.
Does hay fever cause a fever?
No. Despite the name, hay fever does not usually cause a true fever. It is an allergic reaction to pollen, not an infection, so it does not raise body temperature the way a cold or sinus infection can. A genuine fever points more toward an infection than toward allergies.
How do I know if my symptoms are hay fever or a cold?
Hay fever typically brings itchy eyes, clear nasal discharge, no fever, and symptoms that last for weeks or follow a season, often starting suddenly on exposure to pollen. A cold may include a mild fever, body aches, thicker discharge, lasts about 7 to 10 days, and is contagious. Itchy eyes and the absence of fever lean toward allergies.
Can hay fever trigger asthma?
Yes. Hay fever can trigger or worsen asthma and can also aggravate eczema. If you have wheezing, chest tightness, coughing, or shortness of breath along with your nasal symptoms, that may signal asthma and should be discussed with a doctor.
Are hay fever symptoms seasonal or year-round?
They can be either. Seasonal symptoms follow pollen from trees in spring, grasses in late spring and summer, and weeds such as ragweed in late summer through fall. Perennial symptoms last year-round and are usually driven by indoor triggers such as dust mites or pet dander rather than pollen.
Why does hay fever make me tired?
Fatigue is a recognized hay fever symptom. Ongoing nasal congestion, postnasal drip, and disturbed sleep can leave you feeling worn out, so tiredness often accompanies the sneezing and itchy eyes rather than being a separate illness.
Who diagnoses hay fever?
An allergist diagnoses hay fever using a skin prick test or a specific IgE blood test to identify which allergens you react to. If symptoms are persistent, severe, or hard to control, seeing an allergist can confirm the trigger and guide treatment.
Sources
Mayo Clinic — Hay fever (allergic rhinitis) (symptoms, immune reaction to pollen, seasonal vs perennial, no true fever).
ACAAI — Allergy Facts (symptoms; ~81 million Americans diagnosed with seasonal allergic rhinitis in 2021).
AAFA — Pollen Allergy (hay fever can trigger asthma and aggravate eczema).