my baby will be turning 4 months his head is so flat from back I can't turn his head to side while sleeping he doesn't Like pillow also what should I do ?

A. Flat head in Babies is very common mostly on one side initially when the baby is not flipping on the sides in the first few months . so because of the continuous pressure over the soft skull bones such flattening can be there . This....h. will become normal by itself gradually when the skull grow in size and shape with age . No musturd seed pillow or any such kind of intervention like massage is required for the corrrction .