Simple tips to prevent catching the cold or flu was this page helpful.
Onion in room overnight.
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.
There is no scientific evidence to prove it.
It s a fact onions were used in folk medicine long before 1919 but it s just a false belief.
In the morning the room does stink of onion but it doesn t last.
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.
Placing an onion in the room will not treat or prevent you from getting a cold.
As trisha wrote you need to use a fresh onion every night that you need to do this.
Manuel viso onion is also a proven bactericide and can even help to loosen mucus.
There are a variety of onions that work well to increase your health.
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.
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.
Placing a raw cut onion in contact with your foot overnight purifies your blood removes toxins and heals your body.
Take half of a cut onion and put it in a bowl.
So as long as you can stand the smell you could try placing a plate of chopped onion in your bedroom.
I have always simply put the onion in a plate on the night stand besides the person s head while they are sleeping.
The warnings were aplenty and alarmist.