Conclusion
There is currently no exact cure for a cold or the flu, but there are a number of food options, vitamins, and other natural therapies that may aid with symptom relief.
There is some evidence that some treatments could reduce the length of the sickness, but additional research is required. Take measures to bolster your immune system, such as eating healthfully, getting enough sleep, and exercising, to lower your risk of contracting the flu or a cold. Getting all of the advised immunisations is a crucial step as well.
References;
[1] https://www.healthline.com/health/ginger-root-benefits
[2] https://www.healthline.com/health/ginger-for-sore-throat
[3] https://www.nhs.uk/conditions/vitamins-and-minerals/vitamin-c/
[4] https://www.britannica.com/science/respiratory-disease
[5] https://my.clevelandclinic.org/health/diseases/4108-diarrhea