Mongolians use Nettle extract, in cases of all kinds of chronic illness. So you can use this method:

Put 1 teaspoon nettle into 1 cup boiled water,  put the extract in cool and dry place. After 1 day put the extract into dark place and after 8 days rinse it well and filter.  Drink this extract everyday before breakfast and before sleep. 500 grams of extract can be used for 3 weeks, and you will feel healthy, bright and chearful!  This extract is also useful for heart desease and circulation of the blood.