The common cold is considered the most infectious disease that affects humans, and in fact, the common cold appears as a result of exposure to some types of viruses that attack the upper respiratory tract, and the underlying reason for the prevalence of this type of health problem can be explained that there is More than two hundred viruses can cause a person to suffer from a cold, and therefore the body cannot build resistance against all of these types, and this is what the Centers for Disease Control and Prevention has proven, according to the statistics conducted that adults are vulnerable to suffering from Colds two to three times a year, while children are more susceptible to catching a cold, it has been found that they may catch it 12 times per year. As for the method by which the infection is transmitted, it can be said that the arrival of the infected person’s spray to a healthy person may be responsible for infection. Two days from the onset of symptoms, and his ability to transmit the infection continues until the symptoms disappear completely.