Help Please I Have No Power Steering

[cbum1475]

It recently snowed and I Started driving my car in the icy conditions. As I started my car and pulled of I turned and went into a parking lot that was really icy so my car was sliding everywhere. As I began to leave I noticed a noticable difference in my steering ability. This happaned a couple of days ago and I assumed maybe something was frozen that was limiting me in my driving capability. My car now turns like crap and it I neeed to put my whole body it to making big or small turns. Can anyone help me diagnos what is really my problem and where I can bring it to get fixed and about how much will it cost