Is it sensitive to the touch? Sounds like gyno for sure... Get some nolva and a strong AI like letrozole. Start by blasting letrozole for a few days and adjust the dose accordingly (you can start at a full 2.5mg dose), it should not take long to decimate estrogen levels, after this keep estrogen levels depleted by running out some nolva. This should starve that gyno into remission...
Going on vacation, i don't know what to tell you. Sometimes gyno goes away on its own. I don't know what's in your OTC pct product but hopefully it has a strong anti-estrogen component. A lot of the time it should go away on its own... if its popping up in post cycle then it's probably delayed gyno from an estrogen rebound (i would think).
Realized 6-bromo is an AI, estrogen should be under control... IMO get the nolva & letro, if anything they're good to have on hand period if you every plan to cycle again.