In China, snake, scorpion, centipede, gecko, and toad are commonly called “five poisons”, and its Chinese pronunciation “Wudu” sounds exactly the same as the product name. During the Dragon Boat Festival, many places in the country have a custom called “Expel the five poisons to guarantee safety”. But the five poisons” here also refer to those factors in this period that may cause physical diseases, such as humidity. When extra humidity in human body accumulates to a certain degree, some symptoms like rheumatism will occur. This product, nicely, has the pharmacological function to remove body humidity.