Hay, that sounds frustrating! Flaky scalp sa kids can be tricky kasi sensitive ang scalp nila, and sometimes it's just dry skin or mild eczema na need ng gentler approach. I'd suggest checking with a pedia or dermatologist muna para sure what's causing it, one of my mum friends' daughter had something similar and turned out need lang ng specific treatment, hindi lang shampoo lang. In the meantime, avoid harsh shampoos and try to use lukewarm water lang, never mainit, kasi that can make it worse. Hope baby feels better soon!