"What the hell, you... how did you know that?" the fat man asked in surprise.
Chen Feiyu explained, "The tip of your nose has a yellowish tinge mixed with black. Black corresponds to the kidneys and governs water, which indicates that you have a weak constitution with excess dampness, hence the night sweats. Furthermore, the yellow color indicates cold in your chest. According to the Treatise on Cold Damage, cold equates to phlegm. I will write you a prescription, and after taking it three times, your ailment will be cured completely."
With a flurry of brushstrokes, Chen Feiyu wrote out the prescription and handed it to the stunned fat man.
Chapter 31