This could be a sign of an ear infection. You can't prevent every cold, but there are things you can do to minimize your baby's exposure and boost her defenses. Keep in mind that babies in daycare get more colds than those kept at home simply because they're exposed to more kids and, hence, more illness. Make sure your childcare provider is conscientious about washing her hands. Keep your baby well hydrated.
Cold viruses find it easier to get a foothold in dry nasal membranes.
After that age, you can give your child water as well. You can tell if your baby is dehydrated if she's wetting fewer than five to six diapers a day. Second-hand smoke can put your baby at risk for more upper respiratory problems, so stay clear of cigarette smokers. Keep your baby away from areas where someone has been smoking. Children who live with cigarette smokers have more colds and their colds last longer than those of children who aren't exposed to smoke.