The best initial treatment is albuterol (β2-agonist), second line: fluticasone (inhaled corticosteroid), third line: salmeterol (long acting β2 agonist), fourth line: prednisone (systemic steroids).»Acute cases treatment: Albuterol, steroids, sipratropium (more so for COPD), O2, magnesium, epinephrine if severe.»Specific treatments:High IgE levels --> omalizumabAtopic disease --> montelukastExtrinsic allergies --> cromolyn/nedocromilCOPD --> tiotropium, ipratropium