Place them in four different corners of your room.
Onion in room to absorb germs.
Onions left in a room do not prevent people from contracting flu or other illnesses.
The idea that a vegetable would attract and suck into itself bacteria from the air is not even logical.
Also a cut onion s surface dries out quickly reducing the moisture that is needed for bacteria to multiply.
This claim is a very old myth that has no medical or scientific basis whatsoever.
And of course to have bacteria multiply you need some source of bacteria in the first place.
No onions do not absorb bacteria.
Message claims that leaving onions around a room can absorb the flu virus along with bacteria that cause other illnesses thereby preventing people from becoming sick.
Given that it is mayonnaise s acidity that retards the growth of bacteria it s hard to conclude that cut onions would be a hospitable place for germs or bacteria to take up residence let alone a.
Also cut an onion into slices and place them in your socks and wear the socks before sleep.
It is the sulphuric acid that makes you cry by irritating the eyes.
In fact the onion s own juices are.
This practice reduces the bacteria in the air and prevents infections.
Placing a cut onion in the room of someone who is sick is one suggested remedy that has been passed down in some families and even over social media every cold and flu season.
The onion may turn black because it would eventually rot from both cell breakdown events and bacterial contamination if you left it out not because it absorbs germs.
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 or sneeze but they don t generally speaking hover in the atmosphere like gases and odors.
But sulphuric acid also inhibits the growth of bacteria.
The idea is that onions have the ability to absorb bacteria and viruses and will actually pull the germs out of the sick person.