Why does self-care cause cancer?

Chinese medicine Prunella vulgaris does not cause cancer. Prunella vulgaris belongs to a drug that clears heat and dissipates blood stasis. It is a strong catharsis agent. Its side effects are mainly due to the decrease of gastrointestinal function, so it shows loss of appetite, indigestion, diarrhea and other manifestations. If a large amount of use of the herb, it may cause a certain burden on the liver and kidneys, resulting in a decline in liver and kidney function. In addition, prunella has a certain stimulation to the gastrointestinal mucosa, so pay attention to it when using it.