In a child with exercise-induced asthma, which is done –
Treatment of exercise-induced asthma 

Exercise-induced bronchospasm should be anticipated in all asthma patients.
Treatment immediately prior to vigorous activity or exercise is usually effective.
Treatment is -


Short-acting inhaled β-agonist plus cromolyn. or
Short-acting inhaled β-agonist plus nedocromil.
Prophylaxis with steroids
Prophylaxis with Beta, agonist
Prophylaxis with theophyline
Breathing excercise