If the children smell odor symptoms of nausea, want to vomit, mainly due to the following reasons: first, due to the children’s normal physiological reflexes, if the odor taste very pungent, unpleasant, the vast majority of children will appear nausea, want to vomit. This time some children appear nausea, want to vomit, is belong to the normal physiological reflexes, to let the children as soon as possible away from the odor; Secondly, due to children suffering from inflammation of the throat caused by the symptoms of children with inflammation of the throat, often for the odor of the sensitivity is very high, although the odor is not particularly pungent, but the children tend to nausea, want to vomit, which should be given to the children to apply the timely fat sea water drink.