Three-month-old infants viral bronchitis can generally be self-cured, for the virus itself does not require special treatment, can be based on the specific symptoms of the general care methods to ease the discomfort. 1. Viral infection: viral bronchitis can be cured by itself, and no special treatment is needed for the virus itself. 2. General care: Pay attention to the baby’s temperature and closely monitor the changes in condition. Meanwhile, feed the baby more water as appropriate. Saline nebulization can be used to help relieve discomfort in children with more sputum and thicker sputum. Nasal congestion and snotty nose can be relieved by applying localized hot compresses or saline drops. 3. If there is a secondary bacterial infection, amoxicillin, cefixime and other antibacterial drugs can be used according to the specific strain of infection. The use of specific drugs should be under the guidance of a doctor. The condition of pediatric patients changes rapidly, and it is recommended that they seek medical attention in a timely manner for diagnosis and treatment.