The serpent mark from the legend of the serpent with arrow mark was created in 1892 by Dr Thomas Hays. The mark symbolizes disease (represented by the snake) subdued by it's remedy (the arrow).The world's leading cooling powder brand, Snake Prickly Heat Powder was created in 1947 by Dr. Luen Vongvanij as a treatment for foreigners suffering from Thailand's heat rash and humid hot weather. The snake with arrow mark has been a symbol of quality skin remedy for generations of Thais since.