I'm impressed because this is a really tough situation and you're doing such a great job being proactive about it.  Kudos to you!

I'm guessing, hoping that they all went over the basics of sunscreening, estrogens, etc. with you at your visits.  Please see the answer I wrote today about melasma - all the basics apply to your situation too. 

I would avoid another IPL right now.  I understand what he's saying but it's too risky for you right now, in my opinion, given the complication you just had.  It's true though that, with lower settings, you may do fine with it in the future.

Light peels like the Illuminize or Vitalize have been shown to improve pigment faster in a situation like this.  BUT......, in my opinion, once a week is too frequent.  Once a MONTH would be safer. Also, please don't let anyone do regular "glycolic" peels.  If they are left on too long, you could end up with another complication.  The reason I recommend the ones above is that they are self neutralizing which makes complications less likely. 

Also, if you tolerate Triluma, in my opinion, you should be on that for the next 3 months and then stop it. It will help the pigment to resolve faster while you are doing the peels.   I hope this helps.  Dr. I