Meds aren't going to completely "cure" the disorder, they just help to lessen the symptoms. I mean, we don't want to get so "cured" we don't feel anything anymore. However, if it seems like the depression is getting really bad this time, it may be time to talk to your pdoc about adjusting your dosages a bit. The body can get used to a drug, so that it isn't as effective anymore, which may be the case with you.

I hope things get better for you.