This is a case of unprovoked dog bite. There was a scratch as you mentioned. Hope it did not involve the face and hand. Also there was no bleed.
A per the protocol, the vaccination
with Rabies vaccine
is started and the dog is observed for a period of 10 days. If the dog continues to survive and stay healthy, the vaccination is stopped.
Hope your child received TT and the area was cleaned with plenty of soap and water.
is not used to clean a scratch mark caused by a dog bite.