Since your daughter is already 7 years old, this problem needs to be addressed seriously. This condition is known as Encopresis
and is a cause of concern if it is seen beyond 5 years of age. Also the problem has persisted for 12 months now.
As a mother, you need to take her into confidence and ask her she has a personal problem. Whether she is under any stress
or has problems in school are very important factors that need to be brought to notice. Kindly assess her food and fluid intake and see if her diet is low if fibre.
No, its not just bad hygiene thats causing all the problems. Constipation
itself creates a vicious cycle
that results in fecal soiling. So your child needs lot of attention, care and good toilet training in this regard. Remember the results will not be immediate.
It can be painfully slow. But get a Pediatric consultation and rule out any organic disorder.
Wishing your child a speedy recovery.