Baby drool has the following reasons: First, the normal physiological phenomenon, because saliva is acidic, saliva inside some digestive enzymes and other substances, in the oral cavity with mucous membrane protection, not to invade the muscle layer, when the saliva flow to the skin outside is easy to corrode the skin outside the keratin layer, resulting in inflammation of the skin around the mouth, leading to eczema and other pediatric skin diseases. So often drooling baby should be timely for its mouth to wipe away the drool, wipe when the action should be gentle, wipe dry to avoid damage to the local skin, often wash with warm water drool to the place, and then coated with (skin care) grease to protect the skin of the chin and neck, to children around the bib, to prevent drool to get dirty clothes. Second, children’s mouth ulcers or inflammation in the mouth will cause pathological drooling because of painful swallowing, mainly for the cause of timely treatment, in the case of children with more saliva timely cleaning.