No, this isn't just Jessica Simpson being weird and random again - it's actually a legit beauty treatment!
As part of her new show The Price Of Beauty, Jessica travelled to Mumbai with BFFS Ken Paves and CaCee Cobb to try out some of the world's wackiest beauty therapies.
So far she has eaten fried worms, poured oil over her hair, drank unusual 'digestive' drinks... and yep, turned her head upside down and poured water up her nose with a teapot.
This particular practice is derived from Ayurveda medicine, which has been practised in India for over 5,000 years.