Red fluid leaking, hard to turn steering wheel

Hello World! I recently got an oil change a few days to a week later i notice a whining noise, red fluid leaking. so i took it back to oil change place to make sure my fluids were full ,sure enough they were full. with that being said it is hard for me to turn the wheel now. After they check fluid I was told they seen a small leak of gas. It doesn't smell strong or leak bad. Any suggestions on what needs to be replaced.