Possible allergy: Humidifiers, although moisturizing to humans, can also increase dust mite and mold populations and can sometimes paradoxically worsen allergy symptoms. Consider allergy testing to indoor allergens.
Answered 11/12/2015
2.1k views
Stuffy nose: Could be a viral infection or a sinus infection.
Answered 11/4/2015
2.1k views
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