As long as it's still fresh and hasn't set in Letro should clear it up or it least subside it enough to where you can't see it. 7-10 days of Letro at 2.5mcg/ed and then 1mcg/ed for maybe another week should really help. After that if you're clear, 0.5-1mcg/eod should keep it away.
I'm not a huge fan of Letro except for this purpose. I'd rather use Arimidex when I'm trying to keep it away and Letro if it becomes a problem but you may have to stick with Letro if you're going to stay on cycle because the Adex must not be working.
Question, are you using tren right now? If so you may have a prolactin buildup. If that's the case a small dose of T3 can sometimes help with this.
As for the comment someone made about Nolva being better than Adex...not busting your balls but this just isn't so. Adex and Letro both are a lot stronger, they both block estrogen from binding and reduce it...Nolva only blocks it from binding, it does not reduce it.