And learn more at itchingforhelp.com. this is the sound of an asthma attack... that doesn't happen. this is the sound of better breathing. fasenra is a different kind of asthma medication. it's not a steroid or inhaler. fasenra is an add-on treatment for asthma driven by eosinophils. it's one maintenance dose every 8 weeks. it helps prevent asthma attacks, improve breathing, and lower use of oral steroids. nearly 7 out of 10 adults with asthma may have elevated eosinophils. fasenra is designed to target and remove them. fasenra is not a rescue medication or for other eosinophilic conditions. f...