According to Sadhguru, it is a time-tested recipe by his grandmother. In the post, he has mentioned that, when there are viral infections or influenza going around, one simple thing is just to consume hot water with a little bit of honey, a little bit of turmeric, and, if possible, some mint or coriander. As per his post, if you drink this every three hours, respiratory infections will not happen to you because all these infections first lodge themselves in your throat before going into the respiratory tract.
How to make: To hot water, add a little bit of honey, turmeric, and mint or coriander. Sip it hot.