There have been many other versions of this story claiming that leaving onions around a room will absorb the flu virus along with bacteria causing other illnesses and will prevent people from becoming sick.
Onion in room overnight.
I have always simply put the onion in a plate on the night stand besides the person s head while they are sleeping.
Please remember it is dangerous to cut an onion and try to cook it the next day it becomes highly poisonous for even a single night and creates toxic bacteria which may cause adverse stomach infections because of excess bile secretions and even food poisoning.
Simple tips to prevent catching the cold or flu was this page helpful.
Sliced onions in a sick room absorb all the germs and prevent contagion there is of course no more scientific basis for the belief that onions absorb all the germs in a room than there is for the belief that onions rid the air of infectious poisons viruses and bacteria can become airborne via droplets of saliva or mucus when people cough.
Placing a raw cut onion in contact with your foot overnight purifies your blood removes toxins and heals your body.
So as long as you can stand the smell you could try placing a plate of chopped onion in your bedroom.
There is no scientific evidence to prove it.
Take half of a cut onion and put it in a bowl.
The warnings were aplenty and alarmist.
Washing your hands regularly avoiding crowds during flu season and taking care of your health by eating well exercising and getting ample sleep can help you stay healthy.
It s a fact onions were used in folk medicine long before 1919 but it s just a false belief.
Manuel viso onion is also a proven bactericide and can even help to loosen mucus.
Onion is an ingredient which when cut into small pieces and placed in close proximity to you can help to keep the air humid acting as an expectorant and helping to relieve symptoms.
There are a variety of onions that work well to increase your health.
As trisha wrote you need to use a fresh onion every night that you need to do this.
In the morning the room does stink of onion but it doesn t last.