mdicontainer overlap the childcontrol

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C#

In my application I have a main page with a menustrip to navigate to other forms Since i want it to be opened always I set it as a MDICONTAINER .now I need to open a form on menustripclick event as child i set the form like this

public partial class MainForm : Form
   {
       public MainForm()
       {

           InitializeComponent();
           this.IsMdiContainer = true;
           loginmain();


           intialsetupform();

       }

       private void companyToolStripMenuItem_Click(object sender, EventArgs e)
       {
           Master.CompanyMasterForm cmpnymasterform = new Master.CompanyMasterForm();
         cmpnymasterform.MdiParent= this ;

           cmpnymasterform.Show();
       }}

All was Ok and I got the childwindows work correctly
but Now i need to add two panels in the mainform << one for showing status meddages and other for showing some other controls

I had added the panel and anchored them and the issue is that now when the child window opens all the panels and controls of the parentform(mainform) comes above the childwindow controls which make it unreadable Please provide any ideas to overcome this