1 week old baby drooling is very serious, may be caused by the following reasons: 1, the baby is in the eruption of milk teeth, in the process of milk teeth break gum eruption, will stimulate the gums lead to increased secretion of saliva. In this case, parents can provide the baby with a teething stick, by chewing on the teething stick to relieve the discomfort caused by the eruption of teeth, when the milk teeth are completely erupted, the phenomenon of increased saliva will gradually alleviate. 2, due to the 1 week old baby’s swallowing function is still not perfect, when the saliva is secreted can not swallow in time, resulting in a lot of saliva. This situation also does not require special treatment, and so the baby swallowing function development will be perfect after the phenomenon will be relieved. 3, the baby mouth virus infection, fungal infection or bacterial infection caused by. If the oral herpes is caused by a viral infection, it will cause increased saliva. The baby should be treated with anti-viral treatment, giving the baby anti-viral oral liquid or Banlangen granules. If the increased salivation is caused by a fungal infection, grind mycophenolate tablets into a powder and apply it to the baby’s affected area. If the increase in saliva is caused by bacterial infection, ensure good oral hygiene in the baby’s mouth and rinse the baby’s mouth in time after eating.