Early Flu Symptoms

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By dr. gromatzky
Article Sources Article Sources
  • 1. Boktor SW, Hafner JW. Influenza. [Updated 2020 May 26]. In: StatPearls [Internet]. Treasure Island (FL): StatPearls Publishing; 2020 Jan-. Available from: https://www.ncbi.nlm.nih.gov/books/NBK459363/
  • 2. “Cold Versus Flu.” Centers for Disease Control and Prevention, Centers for Disease Control and Prevention, 30 Dec. 2019, www.cdc.gov/flu/symptoms/coldflu.htm.
  • 3. Eccles, Ron. “Understanding the symptoms of the common cold and influenza.” The Lancet. Infectious diseases vol. 5,11 (2005): 718-25. doi:10.1016/S1473-3099(05)70270-X
  • 4. Evans, Sharon S et al. “Fever and the thermal regulation of immunity: the immune system feels the heat.” Nature reviews. Immunology vol. 15,6 (2015): 335-49. doi:10.1038/nri3843
  • 5. “Flu Symptoms & Complications.” Centers for Disease Control and Prevention, Centers for Disease Control and Prevention, 18 Sept. 2019, www.cdc.gov/flu/symptoms/symptoms.htm.
  • 6. 6 North County Health Services, 18 June 2020, www.nchs-health.org/the-meaning-behind-different-types-of-coughs/.
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7. Congested Eyes and Eye Pain

Eye congestion is typically a response to inflammation within the nose and sinuses.3Eccles, Ron. “Understanding the symptoms of the common cold and influenza.” The Lancet. Infectious diseases vol. 5,11 (2005): 718-25. doi:10.1016/S1473-3099(05)70270-X This type of inflammation is common with the flu and other respiratory illnesses. Eye congestion or watery eyes may also be due to another type of infection, allergies, or exposure to a pollutant.

Eye pain, specifically pain behind the eyes, is another symptom of certain strains of the flu.5“Flu Symptoms & Complications.” Centers for Disease Control and Prevention, Centers for Disease Control and Prevention, 18 Sept. 2019, www.cdc.gov/flu/symptoms/symptoms.htm. This pain can actually be due to the increased pressure of the congestion sign that is so common with the flu. This may also be another reason for headaches that often occur with the flu.

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