What you are doing - the scrubbing and shaving - are just making it worse. Especially if it's psoriasis. Psoriasis is a common skin condition and the scalp is a common place for it to develop. It's not contagious and has nothing to do with lice.
Whatever it is, try treating it like cradle cap for 2 weeks and see what happens.
Before his bath, gently rub some cooking oil into the area.
Wash his hair at the end of the bath, gently rubbing the area to remove any LOOSE flakes.
After the bath, gently brush the area with a soft, baby hair brush to remove any more LOOSE flakes.
Do NOT try to remove everything and do not rub too hard. The rough scrubbing just makes it worse.
Keep doing that every day for 2 weeks and see if anything improves.
If not, go see his doctor or a dermatologist.
at 12:27 PM on Apr. 24, 2009