Hay Fever (Allergic Rhinitis)

Hay fever, also called allergic rhinitis, is an allergic condition in which the immune system overreacts to substances such as pollen, dust mites, animal dander, or molds. It can cause sneezing, runny nose, nasal congestion, itchy eyes, and fatigue that may significantly affect sleep, concentration, and daily comfort. ^[1][2]

What is hay fever?

Hay fever is not a fever in the infectious sense and it is not a cold. It is an allergy-related inflammation of the nasal passages. Symptoms may be seasonal, such as during pollen periods, or persistent if the trigger is present year-round indoors. ^[1][2][4]

What are the symptoms?

Typical symptoms include repeated sneezing, watery runny nose, nasal blockage, itchy nose, itchy or watery eyes, and throat irritation from postnasal drip. Some people also report poor sleep, reduced smell, fatigue, and difficulty focusing because chronic nasal symptoms disrupt rest and breathing comfort. ^[1][2]

What causes it and who gets it more often?

Hay fever happens when the immune system treats a usually harmless substance as a threat. Family history of allergy, asthma, and eczema can increase the likelihood of allergic disease. Exposure pattern matters too. Some people mainly suffer during spring or grass seasons, while others react to perennial indoor allergens. ^[1][2][4]

How is the diagnosis made?

Diagnosis is based on symptoms, timing, triggers, and clinical assessment. In selected cases allergy testing may be used to clarify likely triggers. The history is often very important because a pattern of recurring symptoms during pollen seasons or after specific exposures provides strong clues. ^[1][2]

Treatment options

Treatment often involves trigger reduction and medications aimed at controlling nasal and eye symptoms. The exact approach depends on symptom pattern and severity. In some people, asthma control also needs attention because upper and lower airway allergies can overlap. ^[1][2][5]

When should you see a doctor?

Medical review is helpful when symptoms are frequent, severe, disrupting sleep, causing repeated sinus issues, or making it hard to function. People with wheezing, chronic cough, or asthma symptoms should be especially careful because allergy seasons can aggravate lower airway disease. ^[1][2][5]

FAQ

Is hay fever contagious?

No. It is an allergic condition, not an infection. ^[1][2]

How can hay fever be distinguished from a cold?

Hay fever often causes itching, repeated sneezing, watery eyes, and a recurring trigger pattern, whereas colds are infections and are more likely to involve body aches or short-lived infectious symptoms. ^[1][2]

Can pollen allergy worsen asthma?

Yes. Allergic triggers can worsen asthma in some people. ^[1][5]

Does hay fever go away completely?

Symptoms may improve with control strategies and treatment, but the condition can recur with ongoing trigger exposure. ^[1][2]

When should you see a doctor for hay fever?

When symptoms are persistent, severe, affecting sleep, or linked with wheezing or asthma symptoms. ^[1][2][5]