Purposes and objectives. Bronchial asthma is the most frequent chronic disease in children and in almost 50% of these cases, it occurs eosinophilic airway inflammation. The most important objective in monitoring asthma is preventing exacerbations by means of good communication between physician, patient and family, a good compliance of the latter and an accurate assessment of the asthmatic patient’s quality of life. Present study is examining correlation between asthma control and airways eosinophilic inflammation level in asthmatic children treated with ICS. Method and material. We evaluated 24 patients presented in emergency department of our hospital, during ten weeks in cold season. The assessment consisted in performing Asthma Control Test (ACT), measuring fraction of the exhaled nitric oxide (FeNO) and pulmonary function testing. Results and discussions. We documented a negative linear correlation of ACT score with FeNO (r = -0. 6286 (p < 0.01)). Conclusions. Measuring FeNO is a simple to perform, fast and noninvasive method. FeNO value is related to ACT score, between them being a negative linear correlation. Generating simple algorithms may improve control of disease and tailoring therapy asthmatic children.