Ingredients:
50 gr  of rootless  plantain   
20 gr  of nettle also without root

5  walnuts in shells   
1 l  of water
500 ml  of honey
200 gr  of yellow sugar

Wash both plantain and nettle real well. Slam walnut with hammer once and place it broken like that still in shell in 1 liter of water to cook. Cook for 30 minutes remove from heat and drain the water. Place honey and sugar and stir so it all melts and incorporates nicely.  Let syrup cool and pour it into bottles and keep in the fridge. You may use it all winter long as many times as you need it. Dosage is one tablespoon 3 times daily.