After moving to a new area, I noticed that my tongue became coated. It got to the point that the surface was rough and my tongue seemed swollen. After a few more days, my tongue was becoming numb in the center. I decided to give some of these remedies a try and here's what worked best:
1. I buy refrigerated probiotics (blend of Lactobacillus rhamnosus & Lactobacillus acidophilus). Open one capsule and use a soft tooth brush to gently rub the powdered contents onto your tongue. Then just leave it on as long as you can and swallow the rest. It's a good idea to take a daily capsule as well internally.
2. I bought organic, food grade vegetable glycerin. Place a few drops on your tongue and rub it in. Allow it to stay on your tongue - it is also safe to swallow.
3. Use virgin, organic, cold expeller pressed coconut oil.. I've been using it for oil pulling for years. Just take a small teaspoon of the c.o. and let it melt on your tongue.
I used all three methods about an hour or two before bed time. It started working before I went to bed. The next morning, the numbness and swollen feeling were gone and the pink color is returning to my tongue.