DEAR DR. GOTT: A past column included a letter from a person that drinks lots of water but continues to have a dry mouth. I agree that certain medications can cause dry mouth but I have an alternative to consider that may be simpler.
My husband and I have run a water treatment company for more than 20 years. One thing that is used quite often to clean water and make it potable (drinkable), is alum. When too much is used, it leaves you with a dry mouth and wanting to drink more.
This became evident to me early in our business on a cruise ship when I was constantly thirsty even after drinking the ship’s water and again recently when my sister-in-law and I each drank a different brand of bottled water and were thirsty again within five minutes. [Read more...]