Indoor Allergens (cont.)

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What about allergies to indoor pollens and houseplants?

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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


Medscape Reference. "Indoor Aeroallergens." eMedicine. 4 Aug. 2010. <>.

Last Editorial Review: 3/23/2012

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Indoor Allergens - Dust Mites at Home Question: How do you control dust mites in your house? Do you clean frequently?
Indoor Allergens - Cockroaches Question: Share the steps you've taken to control cockroaches in your home. Do you have any natural remedies to prevent infestation?
Indoor Allergens - Pollens and Houseplants Question: Which indoor plants have been a source of mold or allergens at your house?
Indoor Allergens - Pets Question: How do you deal with allergies caused by household pets? Have you ever had to give away a pet?