Id soak babies head in coconut oil for 15-20 min before the shower and brush the flakes of. Then, used a little bit of shampoo to wash off oil. My oldest has eczema and I use Vanicream products for shampoo and lotion. It’s gentle on the skin and helps when it’s very dry.
Cereve baby is the best and the moisturizing cream. If it gets real bad google bleach baths to prevent skin infections