If you have a lot of red boxes following you from page to page these are urgent notifications, you can click on them to archive them or archive them in bulk.
To archive them in bulk click the bell at the top right of the page, then select Manage Notifications. On the next page click Filter > Staff then filter for your own name. Then from the Urgent Status select Urgent, from Archive Status select Unarchived and click Submit.
The list will then be filtered to show you just these unarchived urgent notifications. and you can archive these one by one or multi select them and use the Bulk Action option at the top right to Archive Selected to archive in bulk.