Is this thrush?

I used to use gentian violet on my kids when they were babies and had a yeast infection.  It is a purple dye and very messy but it gets the job done.  When my middle girl was a baby I used it on her bottom for a yeast infection and took her to a new day care.  I had just started a new job and the sitter didn't have my phone number and when she saw the purple she thought it may be bruising so, after she couldn't reach me she called Children's Services.  The police came and they took her to the ER for an exam.  Fortunately one of the nurses recognized the gentian violet and told them what it was.  I picked her up that day and heard about her adventure.  I wasn't upset at all with the day care.  I was glad they were being careful.

http://www.askdrsears.com/topics/childhood-illnesses/thrush

Thrush in adults can be cause by other factors going on in your body so its good to talk to the doctor. Good luck.

It may not be thrush.  How much liquids are you getting?  A coated tongue could be a sign of dehydration as well. 

Oh, I usually get about 70-80 oz of liquid a day.  It varies a little from day to day but I'm no where near dehydrated.

 That's good.  I didn't think Thrush could be scraped off.  Have you changed new vitamins?  I would definitely just give the doctor a call to be on the safe side. 

i got that a couple of years ago on vacation i knew exactly what is was cause my visiting Grandchild had had it just recently,(which is where i may have caught it)and my doctor called in a liquid nystatin i had to swish around my mouth and spit out three times a day,,got rid of it in two days