Re: SSKI 22 months...

"I suspect some kind of fungal infection"

To make sure what it is:
-Selsun shampoo, the regular one, (not the Blue one) as a scalp treatment. apply approx a tablespoon at your scalp, let sit for half an hour, then rinse.
Do this for three days in a row.
If it is fungal, it should be completely killed in three days.
The ingredients in Selsun is ok, as far as I know; no real nasties. Heavy duty selenium disulfid. Bentonite and others.

If no relief, I suppose it is inflammatory issues. Think adrenals, vit C; yes, finally!
3-6 grams.

Elemental iodine; unbeatable if infection.