hello doctor good morning my daughter is 4months .. she is so irritative.. n sometimes she act like to bite.... is there teeth arousing or this is due to something else... please tell

A. Teething. Teething, which usually starts between 4 and 7 months, can be a painful experience for babies. In addition to biting, a baby who is teething might also drool more than usual, have a rash around her mouth, be irritable, refuse to eat, or pull on her ears or cheeks.