A 7-year-old child with a history of asthma presents to the…

A 7-year-old child with a history of asthma presents to the clinic for a follow-up visit. The parent reports that the child frequently experiences wheezing and coughing during outdoor activities, but the symptoms are manageable with their rescue inhaler. The healthcare provider prescribes a mast cell stabilizer as part of the asthma management plan. What is the primary reason for using a mast cell stabilizer in asthma treatment?