Agreed with Aquarist, ICH is a parasite, that needs a life source to be able to sustain its own simpler life. This would involve having a living life source as the host, and as
driftwood isn't living, it wouldn't be able to sustain a parasitic life form as it has no energy or resources to be able to sustain such a life, be it simple or not. Also, ICH is much smaller, like grains of salt, pin heads are rather large for it to be ICH.
I'd lean towards some form of white algae, or an aquatic fungus of some kind.
Maybe take it out and boil it again, you'll lose some benefical bacterial, so I'd maybe add some filter media from another tank if you have one whilst the driftwood recoups the bacteria.
Good luck!
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snail eggs. I'm at least hoping that's the case because having spent months on getting moss to develop on the wood, I'd hate to ruin it all. Apparently the eggs resemble white sesame seeds - which they do, having had a much closer look.
