Infant three months cough treatment, functional factors caused by cough usually do not need special treatment, timely elimination of triggering factors can be relieved; organic factors caused by cough is usually caused by respiratory infections, need to follow the doctor’s advice to give symptomatic treatment. 1.Functional factors: including environmental factors, feeding factors. It is recommended to identify the causes in time, and parents should eliminate the triggering factors in time, for example, the environment temperature should be appropriate, avoiding high and excessive dryness, etc. Humidifier can be placed indoors to help improve the symptoms. Breastfeeding mothers should avoid eating cold and spicy foods to avoid catching cold. 2. Organic factors: Respiratory tract infections or lung infections are common. If the infection is bacterial or mycoplasma, it is recommended to clarify the type of causative organism in time, and follow the doctor’s instructions to take oral anti-infective drugs, such as cefixime granules, azithromycin and other antibiotics. Parents are advised to strengthen the daily care of infants and maintain a light diet during cough treatment to avoid adverse factors. All of the above medications should be used under the guidance of a doctor, avoid self-medication.