A nurse is reinforcing teaching about controlling allergens with the parent of a child who has a new diagnosis of asthma. Which of the following instructions should the nurse include?

Choice A rationale: Washing the child's pillow in cold water twice monthly is not a relevant instruction for controlling allergens in asthma management. Asthma triggers are often related to airborne allergens such as dust mites, pollen, and pet dander, and focusing on pillow washing alone does not address the broader issue of allergen exposure. Choice B rationale: Using a humidifier in the child's bedroom can actually worsen asthma symptoms. Humidifiers can increase the humidity in the air, promoting the growth of mold and dust mites, which are common allergens that can trigger asthma symptoms. Therefore, this instruction is not appropriate for asthma management. Choice C rationale: This is the correct answer. Using a damp cloth to dust the child's furniture weekly is a relevant instruction for controlling allergens. Dusting with a damp cloth helps to capture and remove allergens such as dust mites, pollen, and pet dander from surfaces, reducing the child's exposure to these triggers and potentially minimizing asthma symptoms. Choice D rationale: Installing carpet in the child's bedroom is not recommended for asthma management. Carpets can harbor dust mites, mold, and other allergens that can exacerbate asthma symptoms. Hard flooring surfaces that can be easily cleaned and do not trap allergens are a better choice for individuals with asthma.