Occasional vs. Chronic Dry Mouth
Dry mouth can be an occasional feeling due to dehydration if not enough fluids are drunk or in severe cases of diarrhea or vomiting. Dry mouth can also appear as a reaction to the intake of certain medications, like anti-histamines used against allergy or codeine taken to combat pain or cough. Dry mouth can also be the consequence of a transient anxiety or depression. However, if dry mouth is felt constantly most days of the week and this condition last for over one month then a chronic dry mouth is suspected.