The presentation of this paper on infections of the upper respiratory tract in children had its inception in an attempt to elucidate certain diagnostic aspects of these infections that are rarely included in the didactic presentation of this subject. These infections, their complications and sequelæ present an amazingly varied and protean symptomatology. To merely stress these infections as local occurrences in the nose, the throat and accessory sinuses is to open one’s self to the pitfalls of myopic diagnosis. It is not so much the purpose of this paper to discuss the complications and the treatment of these infections as it is to present the multiple diagnostic facets that they may reveal at times, and to attempt to point out the possible mode of generation of their symptomatology.