Pedicures verse Podiatry.  Podiatrists are  trained to diagnose why you have hard skin on the feet. They can then treat and prevent this accordingly.

Podiatrists use Steam Sterilised Packed and Logged Instruments to prevent the risk of contagious conditions such as Tinea, HIV, Warts, Papilloma's and Hepatitis C.

Foot spa baths can not be sterilised and the instruments used are not required to be sterilised but the risk of infection is very REAL.