The device turns off automatically after three minutes.
You use it a recommended three or four times a day, for three minutes each time.
Two plastic probes, which go up each nostril and emit red light, are attached to thin wires which plug into the device.
The wavelengths of the red light increase blood circulation and stop cells in the nose releasing histamine, one of the main triggers for allergic symptoms.
Urticaria involves intensely pruritic, raised wheals, with or without edema of the deeper cutis.
It is usually a self-limited, benign reaction, but can be chronic.
First-line pharmacotherapy for acute and chronic urticaria is nonsedating second-generation antihistamines (histamine H blockers, leukotriene receptor antagonists, and brief corticosteroid bursts may be used as adjunctive treatment.
More than one-half of patients with chronic urticaria will have resolution or improvement of symptoms within one year.
Viral infections can also cause headache, body aches, fatigue, and sometimes fever.
Hay fever symptoms can also include itchy eyes, nose, and throat, and watery eyes.
To benefit from OTC products for cold, flu, and allergy, it is important to understand (1) the condition causing the symptoms, (2) the predominant symptom(s) one wishes to relieve, and (3) the active ingredient(s) in the product.
Rarely, it may represent serious systemic disease or a life-threatening allergic reaction.
Urticaria has a lifetime prevalence of approximately 20 percent in the general population.