A head cold is a viral infection of the upper respiratory tract that is also referred to as a "common cold." According to WebMD, common symptoms consist of a runny nose, scratchy throat, nasal congestion and cough. Additional symptoms include headache, watering eyes and a mild fever.
MedlinePlus, a service of the National Institute of Health, states that cold viruses are most common during cold and rainy seasons but can occur at any time. Cold viruses are spread through small droplets in the air that are released when an individual with a cold virus sneezes or coughs. Virus particles can also be spread when an individual blows his nose. Additionally, the cold virus can be passed on to a healthy person if he touches an object that is contaminated with the virus and proceeds to rub his eyes or touch his nose or mouth.
According to the Mayo Clinic, there are over 100 viruses that cause head cold symptoms. Children are at higher risk for more frequent colds during a one-year period. It is common for adults to experience up to two colds per year. In most cases, people recover from head cold symptoms within one to two weeks. If symptoms persist or get worse after two weeks, it is important to consult with a health professional.