Signs and Symptoms
The characteristic symptoms of allergic rhinitis are: rhinorrhea (excess nasal secretion), itching, and nasal congestion and obstruction. Characteristic physical findings include conjunctival swelling and erythema, eyelid swelling, lower eyelid venous stasis, swollen nasal turbinates, and middle ear effusion.
Other physical signs include folds in the skin below the lower eyelid known as Dennie–Morgan folds, and rings under the eyes, known in patients with allergic rhinitis as "allergic shiners". There can also be behavioural signs; in order to relieve the irritation or flow of mucus, patients may wipe or rub their nose with the palm of their hand in an upward motion: an action known as the "nasal salute" or the "allergic salute". This may result in a crease running across the nose, commonly referred to as the "transverse nasal crease", and can lead to permanent physical deformity if repeated enough.
Sufferers might also find that cross-reactivity occurs. For example, someone allergic to birch pollen may also find that they have an allergic reaction to the skin of apples or potatoes. A clear sign of this is the occurrence of an itchy throat after eating an apple or sneezing when peeling potatoes or apples. This occurs because of similarities in the proteins of the pollen and the food. There are many cross-reacting substances.
Some disorders may be associated with allergies: Comorbidities include eczema, asthma and depression
Read more about this topic: Allergic Rhinitis
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