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The most allergenic tree pollens are from birch, cypress, Japanese cedar, latex, grass, and ragweed.

Pimples or a rash in the area of the breasts or on the upper back, caused by a bra that chafes, is not clean or is made of material that is allergenic or not breathable.

The term “hypoallergenic” means less allergenic, or less likely to cause allergies.

Even some labeled “baby safe” or “free and gentle” contained ingredients considered allergenic.

This results in a flurry of breathable, allergenic aerosols that could induce asthma attacks, she says.