The effects of Ligustrum are as follows: 1. Modern pharmacology suggests that Ligustrum has a calming and sedative effect on the central nervous system, and also has a certain hypotensive effect; 2. Ligustrum contains volatile oil, which has strong antifungal and anti-inflammatory effects; 3. The neutral oil contained in Ligustrum can increase the tissue’s ability to tolerate hypoxia, and the neutral oil also has a certain cooling effect. The main effect of Ligustrum is to remove wind and cold, remove dampness and relieve pain, mainly used for treating headache caused by wind and cold, also can be used for pain in the limbs caused by wind and cold. Ligustrum is pungent, warm and dispersing, good for moving up to the top of the head, especially suitable for treating headache caused by wind-cold. However, attention should be paid to the dosage. Excessive amounts of gao ben may cause excessive sweating and dissipation of yang energy and damage to fluids. Because ligustrum is warm and dry, it is not suitable for heat disorders such as wind-heat, internal heat due to yin deficiency, fever and yin injury, night sweating and spontaneous sweating.