My grandmothers Flu recipe :
This worked because it showed us how much Granny loved us. She would start out by bringing lemon juice heated up just before it boils. Then she would mix in honey from her farm area. While telling us how difficult it was to have your temps just right so you had to keep your eye on the heat. This gets the sick persons attention and builds his trust while she added her secret love potion, Hot Rum.
It certainly clears your sinuses.
It worked for me ;~)
I Think I was 12.