Why is my 9 month old boy has some black on his tongue

why is my 9 month old boy has some black on his tongue
TAKE HIM TO THE DOCTOR!

hαve you tired wαshing his little mouth?
Put α gαuze αround your finger αnd put it under wαrm wαter αnd cleαn his little tongue. mαybe it's food?. but if it doesn't go αwαy go to the ER -- thαt sounds scαry:-(

Black Tongue is usually a fungus and needs to be treated by your child's doctor, so I hope you have already gone to see the doctor and have started treatment.