For thrush or a white coating on the tongue:
Go to a Natural Food store and buy ground Fennel seed (Much cheaper than a grocery store).
My daughter use to get thrush all the time as a baby; a Dr. recommended this:
*Use 1 tbs of ground fennel in a coffee maker.
*Use one cup of water.
*Put it in a bottle warm or cold doesn't matter.
Should clear the babies tongue in a couple of days. I used this the entire time my daughter was drinking formula.
I used Fennel Powder in warm water to clear up my baby's thrush (a white coating on the tongue). A German Woman told me about it. It was amazing. In a day or two it was all clear. You can us it imbetween baby's formula. From 2 weeks and older. It is so cheap too! Go to any health food store and buy as much as you like! Use a coffee maker, put in about 1/2 c. fennel to 12 serv. of water. Add less water if you find it isn't strong enough.