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The characteristic symptoms of allergic rhinitis are: rhinorrhea (excess nasal secretion), itching, sneezing fits, and nasal congestion/obstruction. [17] Characteristic physical findings include conjunctival swelling and erythema , eyelid swelling with Dennie–Morgan folds , lower eyelid venous stasis (rings under the eyes known as " allergic ...
Propylhexedrine is used to treat acute nasal congestion related to the common cold, allergies, and hay fever. For nasal congestion, the dosage is listed as four inhalations (two inhalations per nostril) every two hours for adults and children 6–12 years of age. Each inhalation delivers 0.4 to 0.5 mg (400 to 500 μg) in 800 mL of air.
Rhinitis medicamentosa is a form of drug-induced nonallergic rhinitis which is associated with nasal congestion brought on by the use of certain oral medications (primarily sympathomimetic amine and 2-imidazoline derivatives) and topical decongestants (e.g., oxymetazoline, phenylephrine, xylometazoline, and naphazoline nasal sprays) that ...
10–30% each year (developed world) [1] [5] Sinusitis , also known as rhinosinusitis , is an inflammation of the mucous membranes that line the sinuses resulting in symptoms that may include production of thick nasal mucus , nasal congestion , facial congestion, facial pain , facial pressure, loss of smell , or fever .
Nasal obstruction characterized by insufficient airflow through the nose can be a subjective sensation or the result of objective pathology. [10] It is difficult to quantify by subjective complaints or clinical examinations alone, hence both clinicians and researchers depend both on concurrent subjective assessment and on objective measurement of the nasal airway.
However, some researchers argue that the flow of mucus down the back of the throat from the nasal cavity is a normal physiologic process that occurs in all healthy individuals. [1] Some researchers challenge post-nasal drip as a syndrome and instead view it as a symptom, also taking into account variation across different societies.
A CT scan showing evidence of the nasal cycle: the more patent airway is on the right of the image, the swollen turbinates congesting the left. The nasal cycle is the subconscious [1] [2] alternating partial congestion and decongestion of the nasal cavities in humans and other animals.
Nasal sprays are used to deliver medications locally in the nasal cavities or systemically. They are used locally for conditions such as nasal congestion and allergic rhinitis . In some situations, the nasal delivery route is preferred for systemic therapy because it provides an agreeable alternative to injection or pills.