Respiratory infections are so common that many terms are used to describe them, depending upon how bad they are. The common cold or head cold is the most frequent and mildest type of infection.
Typical symptoms are stuffed-up nose, poor appetite, headache and mild tiredness.
Fever is infrequent and seldom high. Mild soreness of the throat or mild cough may complete the list of complaints. These illnesses may include sore eyes, sore throat, hoarseness or neck gland swelling. Appetite loss, vomiting or diarrhea also occur commonly in children with flu-like illnesses. A worn-out feeling may continue for a week or more.