A group of 36 children aged from 1 10/12 to 11 years was the subject of clinical and laboratory examinations. It was found that there is a close relationship between food hypersensitivity to milk and symptoms of the skin (81%), upper (61%) and lower (55%) respiratory tract, digestive tract (47%) and central nervous system (14%). These symptoms occured in isolated or associated forms on the different organs or systems. An elimination diet and pharmacological treatment with Astemizol were used in all children from the investigated group. Complete relief of symptoms was observed in 39% of children; 44% of examined patients had a regression of symptoms of 1 and/or 2 organs. Side effects of treatment with Astemizol were observed in the form of excessive appetite (22%), body weight gain (3%), vomiting (3%), diarrhoea (3%), bleeding from the nose (3%), sleepiness (5%). Due to the good therapeutic effect and insignificant side effects, the supporting pharmacological treatment with Astemizol was found useful in children with hypersensitivity to cow's milk.