Allium Cepa. Onion (Liliaccae) Acute catarrhal inflammation of mucous membranes, with increased secretion. Catarrhal dull headache, with coryza; in open air; < on returning to a warm room (compare, Euph., Puls.). Headache ceases during menses; returns when flow disappears (Lach., Zinc.). Eyes: burni...