Saliva: Suspect something imparting color to saliva and tongue carry to lips and drys . Not particularly worrying if washes off. Do you smoke can cause yellow to orange discoloration.
Answered 1/19/2013
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6 doctors weighed in across 2 answers
A doctor has provided 1 answer
A doctor has provided 1 answer
2 doctors weighed in across 2 answers
A doctor has provided 1 answer
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