To prepare this at home, simply chop about a handful of daikon and put it into a glass container, then cover the chopped daikon evenly with honey and put the lid on. Leave the honey-daikon mixture at room temperature for approximately three to four hours.  The prepared syrup can be taken 2-3 times a day either straight or by adding a tablespoon to a cup of hot water to make a soothing tea. The mixture will last for about a week when stored in the fridge.