Asthma: A common ailment, difficult to manage – Walla Walla Union-Bulletin

Asthma: A common ailment, difficult to manage
Walla Walla Union-Bulletin
Asthma, a chronic inflammatory disorder of the airways, affects more than 6 million American children, according to the Centers for Disease Control and Prevention. When airways are provoked — by allergens, infection or exercise, for instance — they …