What causes perennial symptoms of pediatric allergic rhinitis?

Updated: Jun 04, 2021
  • Author: Jack M Becker, MD; Chief Editor: Harumi Jyonouchi, MD  more...
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Perennial symptoms are usually caused by indoor allergens, including the following:

  • Dust mites

  • Cat dander

  • Dog dander

  • Indoor molds

  • Cockroaches

  • Feathers: In most occasions, feather pillows and comforters are highly allergenic, secondary to dust mite infestation. Nonfeathered bedding usually has less dust mite infestation but does have progressively more dust mites over time; dust mites lay eggs every 3 weeks and accumulate where human dander accumulates. Thus nonwashable beddings (eg, pillows, bed mattress) should be encased by dust mite–proof encasings.

  • Other furry animals

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