There are multiple items in the interface that deal with the entries because that is the primary purpose of the application. Other important parts of the application include preferences, finding entries, creating and managing database, the medicine cabinet, and others.
Here we have details about the rest of the user interface that is not specifically tied to the Entries but still important for the programs operation.
Pain is managed using various treatments or medications. The Medicine Cabinet keeps track of these types details. Whether your tracking your medicine you are required to take hourly, daily, weekly, etc. Or if you have therapeutic massages or acupuncture you complete once a month it can be entered in the cabinet so its easier to track when making your entries.
Are we missing a set of details that you feel are important? If so please tell us in the forums!