Infant teething is always picking with the hand, it may be physiological factors, but also may be caused by oral ulcers, acute pharyngitis and other pathologic factors. According to the cause of the disease need to be targeted treatment, such as general treatment, medication and so on. 1. Physiological factors: Itchy teething beds in infants may cause mild discomfort. Infants may relieve the discomfort by picking with their hands, which is a physiological phenomenon, and can buy teething sticks for infants to relieve the discomfort. 2. Mouth ulcers: when infants lack of vitamins or infections, mouth ulcers may occur, at this time due to localized pain, infants may use their hands to pick to ease the discomfort, parents need to pay attention to the infant’s oral hygiene, timely diagnosis of the diagnosis, and follow the doctor’s instructions for vitamin supplements or anti-infective treatment. 3. Acute pharyngitis: when the infant pharyngeal infection, acute upper respiratory tract infection, there can be pharyngeal pain, resulting in infants appearing to pick with their hands. Viral infection, generally supportive treatment can be; combined with bacterial infection, can use cefaclor and other antibiotics for anti-infection treatment. The baby teething is always picking with the hand, may also be other reasons for the cause, it is recommended to consult a doctor to clarify the diagnosis, under the guidance of the doctor for targeted treatment. The above medication needs to follow the doctor’s instructions.