"all emotional going to your face, voice, performance...all these will left something on your body, over time, these become the base of your health issue. So the TCM doctor according what's they can see, smell, hear, question and touch to get all the information they need, then depend your main complains to get a map, a route and a solution, this will happens every time you meet your acupuncturist like me, is a routine before every treatment.
So my suggestion: don't makeup, don't scraping tongue coat, don't use strong perfume, were relaxed coat to meet your TCM doctor, like meeting a close friend, and enjoying the treatment.