Lavender (nerd in Hebrew) was one of the holy herbs used in the biblical Temple and is mentioned in the Song of Solomon. With a scent widely and commonly recognized throughout the world, Lavender is used to treat insomnia, nervous tension, anxiety and headaches. It has been proven to settle the nervous system and it is assumed that this is why it is also eases pain. 
Its antibacterial, antimicrobial, antiseptic and analgesic properties also make it highly effective in cleaning and soothing the skin.