Colds and flu are the most common diseases of the respiratory tract; a common cold occurs more frequently than all other diseases combined. Most people get colds several times a year, usually in spring and autumn. If you feel that you are sick, you must immediately begin downloading the necessary measures. If starting the struggle against the symptoms in the initial stage, it is possible to prevent the development of serious diseases (influenza, bronchitis, etc.) and inflammatory processes in the body.