Recurrent episodes of bronchial obstruction are most common in young children. Various phenotypes of wheezing/bronchial obstruction in preschool children have been described. Large cohort studies demonstrated that it is possible to estimate the risk of chronic bronchopulmonary diseases (developing in adolescence or adulthood) among children with recurrent episodes of bronchial obstruction. All children with recurrent bronchial obstruction should be carefully followed-up and receive timely rational therapy. In children with mild bronchial obstruction, the combination of bromhexine, guaifenesin, and salbutamol in fixed doses has demonstrated high efficacy.