EBB
Like Juli said, it may take some time to kick in so hang in there.
What else to do? Well there is rTMS, electroconvulsive therapy, cognitive behavioral therapy, mindfulness, acupuncture, etc.
You might look through "and the answer to your question is..." in the medical support section. It is an over view wht what everyone has tried and their comments. I do like Your drs approach to bring up the Lexapro slowly. I know you need some relief soon but this method will minimize the amount you need to take and you won't have so far to wean off if you decide to ever get off the Lexapro.