... :Dogwood has healing properties that may provide relief for sufferers of insomnia, asthma, toothache, pain caused by menstruation, ovary and ... have helped confirm early conclusions, proving that bark extracts of this plant will stimulate sedative and narcotic effects in ... (helps the heart muscle work better), diuretic (promotes excretion of salts and water from the kidney), hypnotic, antispasmodic, and ...