Allergic rhinitis is a condition arising when the mucosa lining the nasal cavity reacts excessively to environmental substances such as pollen, house dust mites, mold, or animal dander. Although commonly known as hay fever, symptoms are not limited to spring months in all people; in some, symptoms persist year-round.
Because symptoms resemble the common cold, they are often overlooked. Yet prolonged nasal obstruction and discharge can affect sleep quality, school and work performance, sense of smell, and overall life comfort. Otolaryngologic examination helps distinguish between this and other causes with similar symptoms and allows planning of an approach appropriate to the individual.
What Is Allergic Rhinitis?
When the immune system misidentifies normally harmless substances as threats, it initiates a chain through antibodies called IgE. Mast cells in the nasal mucosa release histamine and similar mediators; blood vessels dilate, secretion increases, and nerve endings are stimulated. Sneezing, discharge, and itching are direct reflections of this process.
Allergic rhinitis is generally evaluated in two categories. Seasonal form is determined by tree, grass, and weed pollens; symptoms intensify during periods consistent with the pollen calendar. Year-round form is dominated by house dust mites, mold fungi, cockroaches, and pet proteins; symptoms may continue independently of season. Both conditions may coexist in the same person.
- Seasonal triggers: tree, grass, and weed pollens
- Year-round effective triggers: house dust mites, mold, animal dander and skin scales
- Factors that may worsen symptoms: cigarette smoke, exhaust, sharp odors, sudden temperature changes
- Family history of allergic disease may increase predisposition
Symptoms and When to Seek Medical Attention
The typical picture involves successive bouts of sneezing, watery clear nasal discharge, nasal and palatal itching, and nasal obstruction occurring together. Redness, tearing, and itching in the eyes frequently accompany these; this is called allergic conjunctivitis. Prolonged obstruction can lead to mouth breathing, snoring, frequent nighttime waking, and daytime fatigue.
Several clues help distinguish from the common cold: allergic rhinitis does not involve fever, discharge remains clear, itching is prominent, and symptoms can be related to specific environments or seasons. In contrast, thickening of discharge, sensation of facial pressure, obstruction limited to one side, nosebleeds, or persistent loss of sense of smell suggests a different cause requiring examination.
- Nasal symptoms lasting weeks or recurring in certain seasons of the year
- Sleep fragmentation, mouth-breathing during sleep, daytime concentration difficulty
- Continuous need for over-the-counter nasal opening sprays
- Cough, wheezing, or shortness of breath accompanying the symptoms
- In children, constant nose-picking, nasal drainage, hearing loss
Asthma, Sinusitis, and Relationship to Adjacent Structures
The nose and lungs are parts of the same respiratory pathway. People with allergic rhinitis have higher risk of asthma than the general population; a significant portion of those with asthma also have nasal symptoms. For this reason, patients reporting cough, chest tightness, or shortness of breath have the respiratory tract evaluated comprehensively.
Swollen and edematous nasal mucosa can narrow the pathways for sinus aeration and drainage. This condition can cause secretion pooling within sinuses and set the stage for recurrent sinusitis attacks. Similarly, Eustachian tube function may be impaired; ear fullness, pressure sensation, and particularly in children, fluid accumulation in the middle ear may result. Adenoid enlargement in children can aggravate the picture.
How Is Diagnosis Made?
The foundation of evaluation is detailed history: when symptoms started, in which environments they increase, whether they follow a seasonal pattern, home environment, pet ownership, occupation, and family history are inquired. Then the nasal cavity is examined; with endoscopic inspection, mucosal color and edema, secretion quality, turbinate volume, septal position, and additional growths such as polyps are assessed.
When identifying the trigger is necessary, skin prick testing is used. Standard allergen extracts dropped on the forearm or back are contacted with a superficial scratch, and swelling is measured approximately fifteen minutes later. Antihistamine use may affect results, so certain medications may need to be discontinued before testing. When skin testing is not suitable, measurement of allergen-specific IgE in blood may be preferred. Test results have meaning only when interpreted together with complaints and examination findings.
- Detailed history and identification of symptom seasonal pattern
- Nasal cavity examination, endoscopic evaluation if needed
- Skin prick testing for sensitivity screening
- Allergen-specific IgE blood measurement if needed
- Respiratory function tests if asthma is suspected
Treatment Options
The approach is planned in stages. Initially, moving away from triggers and nasal care are emphasized; medication options are added based on symptom severity. The goal is to control symptoms and improve sleep, daily activities, and breathing comfort. The speed and degree of response varies from person to person.
Nasal irrigation with saline physiologic or isotonic and hypertonic solutions is a simple application that helps remove allergens and secretions from the mucosa; it supports the effect of other treatments. Nasal corticosteroid sprays reduce inflammatory process in the mucosa; when used regularly, effects usually begin within days and become more evident within weeks. Antihistamines taken orally or applied to the nasal cavity are effective for sneezing, itching, and discharge. Leukotriene receptor blockers may be options, especially when asthma is present.
In suitable patients, allergen immunotherapy—allergy vaccine—may be considered. Administered as sublingual drops or tablets or by subcutaneous injection, it aims to reprogram the immune response over time. Usually a three- to five-year program, response varies individually and may not be suitable for every patient. Due to possible allergic reaction, it is conducted in an equipped setting under physician supervision.
- Environmental modifications to reduce trigger contact
- Regular nasal irrigation with salt solution
- Nasal corticosteroid sprays with correct spray technique
- Oral or nasal antihistamines
- Allergen immunotherapy in selected patients
Turbinate Enlargement and the Role of Surgery
Turbinates are curved structures within the nose that humidify, warm, and filter air. Sustained allergic stimulation can cause these structures, particularly the lower turbinates, to increase in volume. Over time, when the tissue beneath the mucosa becomes thickened in a way that is difficult to reverse, relief provided by medications may become limited.
Surgery does not eliminate the cause of allergic rhinitis; it aims to reduce volume increase contributing to obstruction. For this reason, medication therapy usually continues after the procedure. Methods such as radiofrequency turbinate reduction or submucosal tissue reduction may be used; if septal deviation is present, straightening may be planned during the same procedure. All surgical procedures carry risks such as bleeding, infection, crusting, mucosal dryness, and over time renewed volume increase. Which method is suitable is determined by considering examination findings and the person's overall health status together.
- Surgery is considered for volume increase not responding adequately to medical treatment
- Radiofrequency procedures may be performed under local anesthesia in suitable cases
- If septal deviation is present, it may be evaluated during the same procedure
- Continuation of allergy therapy after the procedure is expected
Process, Recovery, and Important Considerations
In medication therapy, response takes time to develop; regular and correct-technique use of nasal sprays is important. When applying spray, the dispenser should be directed toward the same-side eye's outer corner rather than the nose's midline, which increases efficacy and reduces nosebleed likelihood. Stopping medication when symptoms improve without consulting the physician may lead to symptom return.
In days following turbinate reduction, nasal crusting, mild bloody oozing, and temporary increase in obstruction may occur; saline irrigation and humidification are recommended during this period. Return to daily activities varies with the procedure used and the individual. Follow-up examinations are planned to monitor healing.
The information presented here is for general education; individualized diagnosis and treatment decisions are made only after examination and necessary investigations. For appointments and information, contact can be made.
- Reducing use of dust-trapping carpet, plush toys, and heavy curtains in the bedroom
- Washing bed linens in hot water and using mite-proof covers
- Keeping windows closed during periods of high pollen density; rinsing face and hair upon returning from outdoors
- Not using nasal decongestant sprays for longer than several days; prolonged use can increase obstruction
- Avoiding cigarette smoke and sharp-smelling cleaning products
- Informing the physician of all medications used, pregnancy status, and accompanying diseases