Indoor Allergens Symptoms, Causes, Treatment - What about allergies to indoor pollens and houseplants? on MedicineNet

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February 10, 2012

Indoor Allergens (cont.)

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What about allergies to indoor pollens and houseplants?

It is surprising, considering how frequently outdoor pollens cause allergies, that few indoor plants are troublesome. Indoor plants are more leafy than flowering and do not pollinate as much as outdoor plants. Some offending indoor plants are the weeping fig (Ficus benjamina), which can cause eye allergies, and the flowering maple (Alutilon hybridum), which can cause asthma.

Indoor plants, especially those that are kept in damp wicker baskets, are a source of molds. Plant terrariums and large indoor plants are culprits as well. Dried flowers and live Christmas trees should also be avoided, as they are common carriers of molds.

Table 1: Where Animal Allergens Come From

Animal Source
Cat Skin, Saliva
Dog Skin, Saliva
Rat Urine
Guinea Pig Urine, Saliva
Rabbit Urine, Saliva
Gerbil Skin, Serum
Hamster Skin
Mouse Urine
Horse Skin
Indoor Allergens At A Glance
  • House dust is a mixture of components that can cause allergies.
  • Dust mites thrive in warm, humid places.
  • Cockroach allergy can be a major factor in serious asthma and nasal allergy.
  • Symptoms of hay fever (allergic rhinitis) and asthma can be caused by the inhalation of mold spores.
  • The "dander," or skin shedding of an animal, is more potent in causing allergic reactions than the animal's fur or hair.
  • About 6% of the population is allergic to cats.
  • Indoor plants, especially those that are kept in damp wicker baskets, are a source of molds.

Last Editorial Review: 9/22/2008



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