Yam belongs to the qi tonic in Chinese medicine, according to the theory of Chinese medicine 18 against, 19 fear, yam does not have its contradiction herbs, but it should be noted that the drug is biased in tonic, for the dampness in the fullness (dampness is too heavy resulting in fullness of discomfort in the spleen and stomach) or solid evil, accumulation and stagnation of the person is not recommended to use.
Yam is sweet and flat in nature, belonging to the spleen, lung and kidney meridians, and has the effect of strengthening the spleen and nourishing the stomach, generating fluid and benefiting the lungs, tonifying the kidney and astringing the essence, and can be clinically used in the treatment of spleen deficiency with low food intake, prolonged diarrhea, coughing in the lungs, spermatorrhea, diaphoresis, urinary frequency, thirst and other diseases. When used, it should be noted that the herb favors nourishment, and is not recommended for people with dampness, fullness, or solid evils or stagnation.
If you need to use yam, it is recommended to go to a regular hospital, under the help and guidance of a professional physician.