Allergic Rhinitis (Hay Fever)
What is Allergic Rhinitis (Hay Fever)?
Allergic rhinitis, commonly called hay fever, is an immune system reaction to allergens in the air you breathe. When you inhale pollen, dust mites, pet dander, or mold spores, your body treats these harmless substances as threats. This triggers inflammation in your nasal passages and causes uncomfortable symptoms.
More than 50 million Americans experience allergies each year. Allergic rhinitis can be seasonal, flaring up during spring or fall when pollen counts are high. It can also be perennial, meaning symptoms happen year-round due to indoor allergens like dust mites or pet dander. Either way, this condition can disrupt your sleep, work performance, and daily quality of life.
The good news is that allergic rhinitis is highly manageable with the right approach. Understanding your immune response through blood testing helps you identify what is driving your symptoms. From there, you can make informed choices about avoidance strategies, lifestyle changes, and treatment options.
Symptoms
- Sneezing, often in rapid succession
- Runny or stuffy nose with clear discharge
- Itchy nose, eyes, throat, or roof of mouth
- Watery, red, or swollen eyes
- Postnasal drip that causes coughing
- Fatigue from poor sleep quality
- Dark circles under the eyes, called allergic shiners
- Headaches or sinus pressure
- Reduced sense of smell or taste
Some people experience mild symptoms that come and go with allergen exposure. Others have persistent symptoms that interfere with daily activities and sleep. Children with allergic rhinitis may rub their noses upward frequently, creating a crease across the bridge of the nose.
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Causes and risk factors
Allergic rhinitis happens when your immune system overreacts to airborne allergens. Common triggers include tree, grass, and weed pollen during specific seasons. Indoor allergens like dust mites, pet dander, cockroach droppings, and mold spores can cause year-round symptoms. When these substances enter your nose, your immune system releases histamine and other chemicals that inflame the nasal lining.
Genetics play a significant role in who develops allergies. If one parent has allergies, you have about a 30 percent chance of developing them too. If both parents have allergies, that risk jumps to 70 percent. Environmental factors also matter. Early childhood exposure to tobacco smoke, air pollution, and certain infections may increase your risk. Interestingly, growing up in overly clean environments with limited exposure to germs might make allergies more likely, according to the hygiene hypothesis.
How it's diagnosed
Diagnosis typically starts with your medical history and a physical exam. Your doctor will ask about your symptoms, when they occur, and what makes them better or worse. They will examine your nose, throat, and eyes for signs of allergic inflammation.
Blood tests provide valuable insight into your immune response. Eosinophils are white blood cells that increase during allergic reactions. Elevated eosinophil counts suggest your body is mounting an allergic response. Rite Aid offers comprehensive blood testing that includes eosinophil levels, helping you understand if allergic inflammation is present. You can get tested at over 2,000 Quest Diagnostics locations nationwide. Skin prick tests performed by allergists can identify specific allergen triggers, while nasal endoscopy may be used in complex cases.
Treatment options
- Avoid known allergens by keeping windows closed during high pollen days and using air purifiers with HEPA filters
- Rinse nasal passages with saline solution to flush out allergens and reduce inflammation
- Shower and change clothes after being outdoors to remove pollen from skin and hair
- Use allergen-proof covers on pillows and mattresses to reduce dust mite exposure
- Keep indoor humidity below 50 percent to prevent mold growth
- Antihistamines like cetirizine or loratadine block histamine release and reduce symptoms
- Nasal corticosteroid sprays like fluticasone reduce inflammation in nasal passages
- Decongestants provide short-term relief for nasal congestion but should not be used long-term
- Leukotriene inhibitors like montelukast block inflammatory chemicals
- Immunotherapy, through allergy shots or sublingual tablets, can reduce sensitivity to allergens over time
Concerned about Allergic Rhinitis (Hay Fever)? Get tested at Rite Aid.
- Simple blood draw at your nearest lab
- Results in days, not weeks
- Share results with your doctor
Frequently asked questions
Allergic rhinitis causes clear nasal discharge, itchy eyes, and sneezing that occurs immediately after allergen exposure. Colds typically cause thicker yellow or green mucus, body aches, and fever. Cold symptoms improve within 7 to 10 days, while allergic rhinitis lasts as long as you are exposed to the allergen.
Yes, you can develop allergic rhinitis at any age, even if you never had allergies as a child. Adult-onset allergies often appear after moving to a new location with different plants or allergens. Hormonal changes, stress, and environmental exposures can also trigger new allergies in adulthood.
Keep a symptom diary noting when and where your symptoms occur. Seasonal patterns suggest pollen allergies, while year-round symptoms point to indoor allergens. Allergy skin tests or specific IgE blood tests can identify exact triggers. Blood testing for eosinophils shows if allergic inflammation is present.
Untreated allergic rhinitis can lead to sinus infections, ear infections, and sleep disturbances. Chronic nasal inflammation may contribute to asthma development or worsen existing asthma. Poor sleep from nasal congestion affects concentration, mood, and work performance.
Saline nasal rinses effectively wash out allergens and reduce inflammation. Local honey may help some people build tolerance to local pollen, though evidence is limited. Butterbur extract shows promise in research but should be used cautiously. Always discuss supplements with your doctor, as they can interact with medications.
Testing twice per year helps you monitor how well your allergy management strategies are working. Check levels during your peak allergy season and again during your off-season. Rising eosinophil counts suggest increased allergic inflammation that may need treatment adjustments.
Some foods may worsen symptoms through a phenomenon called oral allergy syndrome. If you are allergic to birch pollen, raw apples or carrots might cause mouth itching. Anti-inflammatory foods like omega-3 fatty acids from fish may help reduce overall inflammation. Staying well hydrated keeps nasal passages moist and helps flush out allergens.
No, they are different conditions that often occur together. Allergic rhinitis is inflammation of nasal passages from allergen exposure. Sinusitis is infection or inflammation of the sinus cavities, often with facial pain and thick discharge. Chronic allergic rhinitis can block sinus drainage and lead to sinusitis.
There is no cure, but the condition is highly manageable with proper treatment. Immunotherapy can significantly reduce sensitivity to allergens over 3 to 5 years. Many people experience substantial symptom improvement or even remission with consistent treatment. Avoiding triggers and managing inflammation are key to long-term control.
You do not need to stay indoors completely. Check daily pollen counts and limit outdoor activities when counts are high, usually in early morning and on windy days. Wear wraparound sunglasses to protect your eyes from pollen. Shower and change clothes after being outside to remove allergens from your body.