hello, you havent mentioned how many times he pass stools on one day? does he pass stools once in few days? is it hard in consistancy?
constipation and
diarrhoea both causes sore anus. if he passes more than 3 times per normal day it is possible he is having mild form of a
indigestion or irritable bowel. it also cause sorenee around the anus.
if the soreness is due to diarrhoea you have to clean anal area well and keep the area dry. if you keep that way untill diarrhoea settles soreness will be minimized during the diarrhoel period.
you should make sure your child is taking adequate water. encourage the chold to take lot of fibre containing food. that is fruits vegeables, and green leaves.
if there is lot of soreness you can arranged sitz bath for the child. since your child is 9 years old he can folllow and obey your instructions. put warm water in a basin and add some pinch of salt to it. then ask your child to sit on warm water. practice it 3 times a day untill soreness reduces.
if you child is prescribed laxatives or
fibre supplements. take them as instructed.
if the child is passing stools with blood streaks it is possible he is having an
anal fissure. so while practicing above instructions better meet paediatric surgeon. hope this helps. thank you.