I have tear troughs (mild, it's the darkness rather than the 'bags') and agree that I focus on them and fixate when I catch myself in the mirror. They are worse because I have until recently been co-sleeping/feeding with a toddler and sleep is messed up.
I agree that concealer can make them worse but I have a few tricks to help while you are waiting. Basically you have to use far less concealer than you think
Get a corrector (Eve Pearl Salmon or Bobbi Brown) in a lighter colour than you'd usually use. After foundation, use a small artist's brush, or concealer brush to dot a tiny amount of corrector (or light concealor) JUST ON THE BLUEISH LINE. Blend out and apply the very lightest amount of illuminating powder (such as LM)
I find eye make up - with defined crease and a light smokeyness (using a mid-strength colour like MAC Shale or Shu Brown 945) will deflect attention to the eye and away from the troughs. Use blusher (Exhibit A by NARS is the best for everyone) -- it also detracts from the troughs.
You'll have to forgo total coverage on the undereye area but this will help disguise that thin line. Besides, if you have tear troughs you're likely to have fine lines and heavy concealor/powder always highlights them, so this means less product there and fewer chances of settling into lines higher up the 'bag'.
I have heard Nick Lowe in London is good for tear troughs, and there is a clinic in Sussex which is supposed to be good.
I am considering it. It doesn't always work however and there is the issue of having to go back fairly frequently.
But yes, just last week I did searches and ditched the corrector/concealer combo.
There are some plastic surgery forums to ask about this, but I for one don't want to get sucked in!