These children are often a mixed picture of viral bronchitis/bronchiolitis PLUS an asthma exacerbation. Treatment with albuterol, ipratropium, magnesium sulfate, steroids, fluids, etc are all reasonable and prudent in this population. If they begin to clinically improve within 30 minutes then you can feel good about soothing their reactive airways. However, they still have underlying viral issues which may require non-invasive positive pressure ventilation (either high-flow nasal cannula or BIPAP). If they do not improve within 30 minutes then you should begin to plan for IMC/ICU admission as these patients will require significant monitoring and respiratory support.