Helix Piercing Healing can take three to nine months and often times it can take time for healing for up to twelve months maximum. The pain (if you have any) may disappear in around two to four months.
In a nutshell, OneDrive is a cloud-based file hosted service that is completely integrated with Microsoft Windows. Probably every piece of software out there that bears the seal of Microsoft has a OneDrive function.
OneDrive (as of Oct 2014) always creates a sub-folder called OneDrive inside the folder you select. The best you can do is create a folder called OneDrive inside your DropBox folder, or vice versa.