My theory on depression is that something always causes it, and abuse and remembering about abuse is one of the possible factors. So I really wouldn't draw a distinction between the two. I would consider depression a symptom of dealing with abuse. I think that depression is pretty much always related to something, whether or not we can identify what that something is very easily. Medications can be helpful in dealing with the symptom. They don't fix the cause of the problem though. Working through what happened to you and how it is still affecting you and what you can do about it now so that you can make your future what you want it to be is how to deal with the real problem.