Preparing mast tree or dogoyaro for chronic malaria requires you to get fresh leaves of the tree which is scientifically named Nauclea latifolia. Wash them well to be free from any grime. Putt about a handfull of leaves in 1 liter water and cook for about 10-15 minutes; leave to cool. After it has cooled, filter to exclude the leaves. Take half a glass of this mixture at night If at morning or in the evening, you need to take it 5-7 days. This remedy is useful in the reduction of malaria symptom since the tree contains medicinal properties. But if the signs fail to show any signs of disappearance doctors should be consulted for further treatment.