Milk or other liquids taken from baby bottles can create special problems. When the liquid from a bottle stays in contact with the teeth for a long time, the teeth can decay quickly. Never put a baby to bed with a bottle, unless it contains only plain water. Don't let your child walk around during the day with a bottle, and teach your child to use a drinking cup around the first birthday. When teeth come through the gums, a child may feel a little soreness and act a little fussy.
Some children enjoy chewing on a firm object or having their gums rubbed with a finger.
Teething does not appear to cause fever, rash, diarrhea or other illnesses. If your baby has any of these symptoms, talk it over with your doctor. It's normal for children to suck their thumbs, their fingers or a pacifier. Most children give up this habit on their own by age 4, with no harm done to their teeth. If your child still has a sucking habit after age 4, tell your dentist.