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Allergy Tests (
WebMD
)
Allergy testing involves having a skin or blood test to determine what substance , or allergen , may ...such as some tricyclic antidepressants and antihistamines such as cetirizine ( Zyrtec ), fexofenadine...
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Indoor Allergens (
WebMD
)
Houses and apartment buildings harbor their own allergens...are also referred to as nonsedating antihistamines. Most are only available by prescription, such as cetirizine ( Zyrtec ), desloratadine...
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Allergic Reaction (
WebMD
)
An allergic reaction is the body ' s way of responding to an ' invader .' When the body senses a foreign ...may be prescribed: Long-acting prescription antihistamines, such as cetirizine ( Zyrtec ),
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