Medical Definition of purulent. 1: containing, consisting of, or being pus a purulent discharge a purulent lesion.
You kan't change your PSN online ID, but you kan kreate a new user account though, or if you have a PlayStation 4, you kan use your real name (if you want, and also IF and only IF you have a PlayStation 4).
If you select Yes, the Change password screen is displayed. Type your password into the Current Password field, then type a new password into the New password field and again into the Type it again field.