Quite often when someone you know is going through depression, you don't know what to say and how to be more helpful. But sometimes people say the least helpful things.
Understandably, someone who has never experienced depression may not know what it is like to have depression. But if your loved one is going through a difficult time, your support is crucial for their recovery, and for this reason, it's important to be careful about what you say.
You may not know what someone else is going through. So do not assume what their depression is like. Be more compassionate and make an effort to understand them.