Tea onion is perhaps one of the oldest and tested natural remedies for cough, well known since the time of our grandmothers.
To prepare this tea you need three onions with medium size (with the peel). Wash and chop the each hub into four equal parts.
Boil them in a liter of water until a third of the water evaporates.
When the tea will be ready throw the onion and the drink drink it throughout the day slowly, sip by sip.