Hi makenzi.exc,
In order to rename a column you need to make use of sp_rename.
Syntax
EXEC sp_rename 'table_name.old_name', 'new_name', 'COLUMN'
Example
EXEC sp_rename 'ReminderDays.Description' , 'Name', 'COLUMN'
Note: Changing Column name can break the functionality.
So make sure you have change the column name every where you have used.