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Does it help to put an onion next to your bed when you have a cold?

Does it help to put an onion next to your bed when you have a cold?

You may remember it from the old days, when your mother put a sliced ​​onion on a saucer next to your bed when you had a cold. Does it really help?

Onion and cold

An onion cannot cure a cold. The volatile components in an onion can ensure that your nose and airways open a little more. It only works temporarily, but it can help you fall asleep better when you have a cold. You have to take the smell for granted, but if you have a cold, you won't smell very much.

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