my baby is crying due to teething and is not able to sleep what to do

A. Crying of a Baby is mostly because of infantile colic and gas related discomfort which is there commonly in night . It can be relieved by medicine like colicaid or gastica drops containing dil oil and feniel oil with semethicone. other reasons could be hunger any illness, nasal blockage, ear pain, diapers rash and sometimes more conditions which needs to be ruled out and managed accordingly .