M.G.
Great question - I have a son with bad dandruff. He also has allergies and eczema and I've often wondered if it's related. None of my other kids has it.
I am going to try the T-Gel and Nizoral (thanks mommas).
We use Head and Shoulders (the active deep cleanse sport one because he has oily thick hair too) and Selsum Blue. While I'm not noticing any flakes, he does complain his head is always still itchy. For my kid, that's what bothers him the most.
This is what I do - and it's only temporary relief - but he has a very (very) fine tooth flexible comb. He has me go through this hair with it and I very (very) gently get clumps of his dandruff off. He had a cradle cap and this is what I did for that also. Super gentle, because otherwise it irritates his scalp.
I'm definitely going to give those shampoos a go though. They sound promising.
Thanks for posting :)