The question really is why your 6 year old child [you do not mention whether your child is a boy or girl] has smelly armpits? This is a sign of early puberty and as your child is only 6 years old it is too early for him/her to be starting puberty now.Early puberty is known as 'precocious puberty' It would be best if your child sees a paediatrician to make sure that he /she is well.In the meantime use a good quality alcohol free, low allergy deoderant.
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