What can help this new under eye bagginess (malar bags)? I'm desperate for a fix, or at least an improvement. (photo)

An in person examination is necessary to see if the irregularities of your lower eyelid can be corrected with a conservative lower eyelid blepharoplasty.  It may be beneficial to wait until the fillers dissolve prior to proceeding. 

you need less filler and more lasers and RF treatments. I suggest reversing your fillers and starting venus legacy treatments to help get rid of the swelling.  Once gone, you should start fractional lasers and do very small non inflammatory fillers (belotero, voluma) but in very little bits over time.  Best, Dr. Emer.