hi my baby girl age is 6month and head shape flat and top little bit high I tried pillow and doing massage also how much time it will take round shape

A. The most common cause of a flattened head is a baby's sleep position. Because infants sleep for so many hours on their backs, the head sometimes flattens in one spot. Simple practices like changing a baby's sleep position, holding your baby, and providing lots of "tummy time" can help. Reduce the amount of time your child spends lying on the back or often being in a position where the head is resting against a flat surface