what is it benefit of using mustard seed pillow for newborn ?is it compulsory to use that pillow?

A. no no. use any pillow of babies. see kids learn fast but don't burden them. that confuses n scares them ok. try to go slow and let child grow at his own pace for that is healthy way if growth for her comprehensive development. see a lot of brands are available to allure you. you should get prescription n adhere to products manuals. avoid too expensive and see to good brands with guarantee ok.