Going through the Teething Process
What to expect when your child begins to teethe

Teething is when the first teeth emerge out of a baby’s gums. It can be a frustrating time for many babies and their parents. Below are a few tips to help the process go by easier for you and your child.
The Teething Process
Teething, which begins as early as 3 months and continue until a child's third birthday, is when you notice your child's first tooth pushing through the gum line. The first teeth to appear are usually the two bottom front teeth and are usually followed 4 to 8 weeks later by the four front upper teeth.
In a few rare cases, children are born with one or two teeth or have a tooth emerge within the first few weeks of life. Unless the teeth are loose enough to pose a choking risk or interfere with feeding, this is usually not a cause for concern.
Easing Teething
When your child begins teething, you might notice your child wants to chew more. Some babies go through a painless teething process while others may experience brief periods of irritability. Sleeping and eating patterns might be disrupted for several weeks, often accompanied by increased bouts of crying. If your baby seems unusually irritable, consult a doctor.

Teething does not cause fever or diarrhea although it may contribute to more painful and swollen gums. 
As your baby is teething, wipe your baby's face often with a cloth to remove the drool and prevent rashes from developing. Don’t forget to give your baby something to chew on. Make sure it's big enough so that he or she can't swallow it and that it can't break into small pieces. A wet washcloth placed in the freezer for 30 minutes makes a good teething aid. Rubber teething rings are also good, but avoid the ones with liquid inside because they may leak. If you use a teething ring, be sure to take it out of the freezer before it becomes rock hard to avoid bruising gums. Massage your baby's gums with a clean finger.
Hygiene for your baby’s teeth
The cleaning and overall hygiene of your baby's teeth is important for long-term dental health. Although the first set of teeth will eventually fall out, tooth decay can exacerbate this process and leave gaps before the permanent teeth are ready to come in. The remaining primary teeth may then crowd to fill the gaps, which may result in permanent teeth without room for space in the gums.
Before your baby's first tooth emerges, wipe your baby's gums daily with a clean, damp washcloth or gauze, or brush them gently with a soft, infant-sized toothbrush and water (no toothpaste!) to help keep their mouth healthy and clean.