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Your eight-year-old sister might cough when you come around for several reasons. It could be an involuntary reaction to excitement or nervousness, especially if she associates your presence with fun or intense emotions. Alternatively, she might have a mild allergy or be reacting to something in her environment, like dust or pet dander. If the coughing persists, it might be worth checking in with her to see if she's feeling unwell.

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1w ago

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