i will hold his bath toy, such as duck, car, etc to demontrate to him how to wash their hair. Firstly, i will ask the duck to close his eyes, and then close his month, bend down, and i will do all the steps, and then i will pour the water from a basin..... i will do all the steps twice, finally, i will say it is the bb show time... and repeat the steps i do to the duck... to my surprise, he is not afraid any more... (in the past, we force him to wash hair, lie down on our body... he will cry and need to sit up).... u can try this method...