You cannot get it expunged because it is not expungeable under the law. You asked a similar question today but the answer remains the same. What you are asking is not a "small sigh of relief" and the court system is not established for such relief. Very sorry.
There is a statute in Illinois law that states what can and cannot be expunged or sealed. That law was passed by the state legislature. To change this, you need to contact your local legistlator.
The desire for the "small sigh" you want has started the process for a lot of law changes. You never know unless you try.