Magnesia Carbonica mag-c.

Acid dyspepsia; from milk, which sours; from cabbage, potatoes and other gross food. Diarrhoea, especially of children; stools green and frothy like the scum of a frog pond; griping pains, sour eructations. Neuralgia, especially of the face; lightning-like pains, usually worse at night; great restlessness, must get up and walk about.