... , expectant mothers cannot not know well Camphor ball of main component is alpha-naphthol, it has strong volatile. When people put on ... nontoxic substances, with the urine eduction body outside, so alpha-naphthol on adults will not significantly impact. But shortly after birth ... wear for quite a while, to bask in the smell of alpha-naphthol disappear again after wear, lest touch their baby after result ...