A cold usually develops gradually over one or two days and is most contagious during the early stages, when a runny nose and/or a sore throat are the main symptoms. 1 Most people feel better after a few days but some colds can last up to two weeks. 1
|Mild Cold||Severe Cold|
References: 1. NHS Choices. Cold or flu? [online] 2017 Sep 1 [cited 2018 Mar 19. Available from: URL: https://www.nhs.uk/livewell/coldsandflu/pages/isitacoldorflu.aspx. 2. Gale Encyclopedia of Alternative Medicine. Common Cold. [online] 2016 [cited 2018 Mar 19]. Available from: URL: https://www.encyclopedia.com/medicine/diseases-and-conditions/pathology/common-cold. 3. BMJ Best Practice. Patient information from the BMJ Group. Common cold. [online] [cited 2018 Mar 19]. Available from: URL: http://bestpractice.bmj.com/topics/en-us/252. 4. Mayo Clinic. Common cold. [online] [cited 2018 Mar 19]. Available from: URL: https://www.mayoclinic.org/diseases-conditions/common-cold/symptoms-causes/syc-20351605.