The baby’s eyes have been watering soon after birth, and they always seem to be crying. Is it painful for the baby to undergo duct irrigation?

Most newborns appear yellowish on the skin, white of the eyes, and mucous membranes in the mouth 2 to 3 days after birth, with varying degrees. Generally, the yellowing is more noticeable on the face and chest, but not on the palms and soles.

What are the possible reactions newborns might experience after vaccination?