A blocked nose in a one-month-old baby is usually caused by nasal discharge, nasal mucous membrane edema, and respiratory tract infection. Parents need to take the child to the hospital in time to determine the cause and treat the cause. Common causes and treatment methods 1, nasal secretions: the child’s nasal cavity is blocked with secretions, resulting in the symptoms of nasal non-ventilation. Cotton swabs dipped in warm water or saline can be used to soften the secretions and then gently clip them out with small tweezers. In addition, you can also stimulate the baby to sneeze, so that the secretions can be discharged, simple treatment, no drug treatment; 2, nasal mucosa edema: children with nasal mucosa edema, may also lead to the nose is not ventilated. At this time, you can use gauze dipped in warm water hot compress nose, can effectively relieve the symptoms of nasal mucous membrane edema, also can be used thumb, index finger along the sides of the nose up and down rubbing, and press Ying Xiang point to relieve nasal congestion symptoms; 3, respiratory tract infection: children with colds, nose non-ventilation symptoms. It can be treated with drugs such as Pudilan Anti-inflammatory Oral Liquid, Shuanghuanglian Oral Liquid, Banlangen Punch, Er Ding Granules, Pediatric Aminophenol Huang Na Min Granules, etc. under the guidance of doctors. Note If the nasal congestion is very serious and affects feeding and sleeping, it means that the inflammation is more serious, and you need to go to the hospital to investigate allergic factors, congenital structural abnormalities and other causes.