Severe drooling in one-year-old babies may be caused by teething, oral inflammation, swallowing dysfunction and other reasons. It can be relieved by timely drying of saliva, application of drugs, oral muscle exercise and other methods. 1. Teething: one year old babies drooling seriously may be caused by teething. In this case, there is no need for special treatment, timely dry the saliva can be, to avoid the skin for a long time by saliva stimulation, resulting in itching, rashes and other symptoms. 2. Oral inflammation: such as oral ulcers, herpes, etc., due to pain, the baby saliva is afraid to swallow, and drooling serious situation. Parents should pay attention to the baby’s oral hygiene, at the same time clear oral inflammation causes give targeted treatment. Note that drugs should be used under the guidance of a doctor, avoid unauthorized use of drugs to avoid adverse effects. 3. Swallowing dysfunction: in this case, parents are advised to pay attention to the baby’s oral muscles exercise, such as letting the baby chew some food, blowing training, etc., can gradually relieve the baby drooling serious situation. If the baby’s symptoms are not relieved by the above methods, it is recommended to consult a doctor in a timely manner, under the guidance of the doctor, improve the relevant examination, to clarify the cause of the disease, symptomatic treatment.