Nancy, After he washes and rinses his hair, have him use a bottle of hydrogen peroxide on his head. It WILL work. I got rid of a serious problem caused by allergies that way after trying $8 bottles of Selsun Blue (which also worked, but the price!). Good luck to him. Carolyn P.S. He needs to keep his eyes tightly shut until he rinses the peroxide out – and that’s the 3% peroxide!!