Booty ozone therapy
https://nypost.com/2023/03/26/heres-the-dangerous-truth-about-gwyneth-paltrows-rectal-ozone-therapy/
"The therapy, which uses medical-grade ozone gas administered through an ozone-generator device, can be inserted in your body in many ways, according to The Cleveland Clinic.
It can be blown up the bum via a catheter, as Paltrow has suggested she does."