my baby is 18 months old ,my baby as cavities upper 4 four tooth,please tell their is treatment for that to get normal

A. You We’ll have to get a check with the paediatric dentist or doctor can only advise you whether you’ll have to get a filling done and otherwise it could be left that way because your child is too small and already having cavity is it is better that you consult a dentist as soon as you can