Yinchen is actually a kind of wild vegetable, which is very common in southern China. It can be used as medicine, but if you pick it, you still need to pay attention to the time. Generally, it is best in spring, that is, picking wormwood in February, March, and April is the best. If you pick wormwood in May, it will not be used as medicine because the nutrients and medicinal value in it are gone. Even if it is used as medicine, it will have no effect. It can be choleretic, antipyretic, and lower blood pressure. It is really very effective for the elderly. When many people give gifts, they give similar things to the elderly, which are equivalent to supplements.