When take lugols iodine I seem to get alot of dandruff?

When I take lugols iodine (7%) I seem to get alot of dandruff in the next few days that is thick and slightly oily, and my scalp also gets itchy. Why is that?

Also I have slight fat lumps on my head that go straight over the top of my scalp length ways, why the hell are they there?

They look like a very subtle version of this:

Cutis verticis gyrata

And Ive ALWAYS had a lot of dandruff since I was a kid, I dno why the hell i ALWAYTS get it?

My stats:

UK
Age: 19 - Male
Height: 5'8
Weight: 73kg