<s>[INST] I woke up this morning to my tongue being white and was a little black in the back and along the side of my tongue was like outlined in black my tongue has stayed white all day along with that my lips were white when I got up through the day color started coming back now noticed my lips are white again and tongue is still white but the blackness is not there [/INST] Hi, I'd suggest doing the mouth swab culture test for candida to identify if candida is the cause of your white mouth to get proper treatment. Meanwhile, until the test results are in, I'd advise to- keep good hygiene of your mouth-wash your mouth with water and salt and a bit of soda bicarbonate- wash your mouth before going to bed and after eating-avoid laying down immediately after eating.- Chat Doctor.  </s>