Handout Provides Preventative Steps for Asthma Flare-Ups | National Institute of Environmental Health Sciences Skip Navigation Handout Provides Preventative Steps for Asthma Flare-Ups Close the left navigation Add The Johns Hopkins University center produced a downloadable print handout of a four-step guide to help care givers manage a child’s asthma attack. Back to Top Last Reviewed: January 05, 2026