I have given 保嬰丹to my son when he was just 1 month old. It is very good to baby, 清熱定驚. Just go to 余仁生 to look at the instruction. Just follow it. At the beginning, I was also hesitated. But now, my son is 4 months old.
Now I give it to my son every week. Of course, he cries every time then. :wink: