Xanthoxylum. Xanthoxylum americanum. X. fraxineum. Prickly Ash. Toothache-tree. N. O. Rutaceae. Tincture of fresh bark.   Clinical.-After-pains. Asthma. Coccygodynia. Dysmenorrhoea. Earache. Fibroma. Headache. Hemiplegia. Hysteria. Jaw-joint, pain in. Levitation. Menstruation,