Rub sesame, coconut, or olive oil on baby’s scalp and leave for a few hours. Shampoo off with a mild baby shampoo or diluted Castile soap. Scratch the scalp with your fingers or use a baby comb to remove the softened flakes as you shampoo. Repeat as needed.
Another simple treatment is to fill a small sock or muslin tea bag with a handful of oats. Close tightly with a rubber band and run the sock under water until damp. Rub over baby’s scalp until the oats are milky and make a slight lather. This helps soften the cradle cap which can then be brushed out with a fine-toothed comb. (This idea comes from Naturally Healthy Babies and Children by Aviva Jill Romm, which I highly recommend.)