The causes of sudden profuse sweating can be divided into physiological functional sweating and pathological sweating. 1. Physiological functional sweating, such as strong physical labor, long-distance running or eating hot drinks or spicy food and sweating. 2. Pathological sweating, is the body of yin and yang imbalance and the occurrence of sweating, such as spontaneous sweating (daytime involuntary sweating, a little sweat aggravation), night sweating (sleep sweating abnormal, wake up sweating to stop). Self-sweating belongs to yang deficiency (qi deficiency), regardless of sitting or lying down Jinjin sweat, a little activity, sweating more. Susceptible to external infections, is a gas deficiency coupling is not dense, Wei Yang is not solid. Night sweats, also known as bed sweats (commonly known as: false sweats) sweating in sleep, to the head, chest, abdomen, back sweating, body like a wash, wake up and then stop, most of them occur in the external fever after healing the residual heat is not yet out of the night sweats. If there is a need for medication, it should be used under the guidance of a doctor, and should not be used blindly on its own to avoid adverse consequences.