Final answer:
To better manage a child's asthma care, a nurse should emphasize good handwashing, adherence to vaccination schedules, and proper use of peak flow meters and nebulizer treatments.
Step-by-step explanation:
The nurse emphasizing information to the parents to better manage their child's asthma care should include the importance of good handwashing to reduce transmission of disease, as it can help minimize the risk of respiratory infections that might trigger an asthma attack. Additionally, the nurse should stress the significance of adhering to the recommended immunization schedule, including getting a yearly flu vaccine, since children with asthma are more susceptible to complications from diseases such as the flu. Lastly, providing instruction on the use of peak flow meters and nebulizer treatments is vital to ensure that the child can properly monitor their condition and manage asthma symptoms effectively.