Here is a very simple way. Simply Re-Initialze the Userform using the UserForm_Initialize
Private Sub UserForm_Initialize()
TextBox1.Text = "" '<~~ Just an Example
'
'~~> Put here the code to re-initialize the userform which will refresh it
'
End Sub
Private Sub CommandButton1_Click()
TextBox1.Text = "Sid"
MsgBox "Re-Initialzing the Userform"
UserForm_Initialize
End Sub