There are over 200 viruses that may cause colds “infection that affects the top of the respiratory system.” Well known symptoms include congestion in the head, sore throat, cough, headache, fever, runny nose, persistent tears, pain in the body. Most haemorrhages disappear without intervention during a 10-day period, but sometimes the normal cold can lead to more serious complications such as bronchitis, pneumonia or influenza.
It is estimated that a person will have two nights of cold in the year. Children in general are infected many more times because their immune systems are not complete and because they have not yet been immune to many of the viruses that cause the common cold. If an adult has several lesions, this may be a sign that his or her immune system is not working normally