Children get into all kinds of dirty things while they are playing, so when your three-year-old starts to scratch his scalp, you might not think anything of it. However, it is important to take into consideration that your child has a dry scalp that needs to be treated so that he does not develop dandruff or other scalp-related issues.

Use baby-shampoo on your child's hair. Though she may no longer technically be a baby, baby shampoo is softer and gentler than other shampoos. Put a dollop about the size of a quarter on your hand and slather it in thoroughly.

Massage his scalp tenderly with shampoo using the tips of your fingers. This will stimulate the follicles and promote healthy hair and a moisturized scalp.

Comb through your three-year-old's hair with a soft-bristle brush after rinsing the shampoo.

Place a dime-sized dollop of conditioner in your child's hair and rub it in. Let the conditioner sit for 3 to 6 minutes before rinsing it out.

Repeat the shampoo and conditioning process once more. Do this process once every 5 to 8 days while symptoms persist.