Have you tested your zinc levels?
I upped my zinc to 100mgs a few times a week and 20mgs the rest. My cystic nasty breakouts with high dose Iodine have all but disappeared.
I bought a zinc talley test from the vitiman shoppe and am using that plus judging breakouts to clue me into how much to take. I can now taste the zinc relatively quickly when I put the soluction in my mouth. A few months ago I couldn't taste it at all.
I've had some absolutely horrible breakouts with Iodine when I take the dose over 50mgs. And they would take weeks to completely heal. But now I'm back on 75mgs and my skin is relatively clear.
The breakouts (plus detox stuff) has kept me driving the dose back down each time I try to move it up. Want to move it up as I still feel cysts in my breasts.