Perennial allergic rhinitis
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Perennial allergic rhinitis is an inflammation of the mucous membrane of the nose with symptoms that persist throughout the year. The causes are usually air-borne allergens, particularly dusts, feathers, molds, animal fur, etc. [1] It is distinguished from seasonal allergic disorders such as hay fever.
- ↑ Medical Subject Headings; indexes the term as Rhinitis, Allergic, Perennial
- ↑ Sheikh, Javed (May 9, 2008), "Rhinitis, Allergic", eMedicine