Why do some people put onions in their socks at bedtime?

From ancient times to the modern era, generations of people have practised the organic remedy of placing onion-stuffed socks on their feet while sleeping to promote healing. From ancient times to the modern era, generations of people have practised the organic remedy of placing onion-stuffed socks on their feet while sleeping to promote healing.  Health and Fitness, Health Tips, Exercises & Workout Tips, Diet & Wellness | Times of India Lifestyle