Nitricum acidum 6C

Nitricum acidum relieves yellowish canker sores sensitive to heat or cold, with a tendency to bleed.

Warning and Information

See a doctor if the canker sore is unusually large, if it recurs frequently or if more appear, or if you have a high fever or increasing pain.


Dissolve 5 pellets under the tongue 3 times a day. Decrease frequency with improvement.