Brush twice a day and no more than three times minimizing ingestion and rinse. Not to be used by children under the age of 12, unless recommended by a dentist. Keep away from children. In case of irritation, discontinue use. Tooth sensitivity and gum problems can be a sign of an underlying problem. If symptoms persist or worsen consult a dentist. If you notice swelling in the mouth or face consult your dentist or doctor as soon as possible. Close the cap to keep the product dry. Do not use the product if the package ends are open.