iTreat Asthma Study Sponsor and Protocol Number: iTreat Primary Care - iTreat 23-10-462 Specialty: Pulmonology/Primary Care Type: Investigational Medication - Azithromycin for Asthma Inclusion: Age 13 - 75 Current treatment with any dose of ICS inhalerOne asthma flare up in the last 12 months Exclusion:Allergy to azithromycin Currently on R-ICS therapy (ex. AirSupra with another high dose inhaler)Known prolonged QT syndrome (can be tested at screening visit)