A child with a cold and no air in the nose is not a big problem, but it is a symptom that can cause great discomfort for the child. If it’s just a little bit of airlessness, think of it as a sign that your child has a cold or rhinitis, and dress him up, change him to a more suitable environment, etc. If it’s noticeable, use a warm washcloth to compress the baby’s nose or clear the nasal secretions promptly. If it is obvious that there is a lack of air, you can use a warm towel to compress the baby’s nose, or clear the nasal secretions in time to allow the nose to breathe smoothly. You can use a nasal aspirator or very discreetly with a moist cotton swab or with to suck out the boogers, to keep the nasal cavity clean, if it is dry boogers, you can drop a few drops of antiseptic paraffin oil or disinfected sesame oil to make it soft, the baby sneezing out by itself. If the nasal congestion is very serious and interferes with sleep, you can let the child lie on his/her side, generally speaking, the upper nostril is easy to keep ventilated. You can also use some nasal decongestants to improve nasal congestion. Of course, the most important thing is to address the cause of the treatment, if the child appears more significant nasal congestion, it is recommended to go to the hospital to find the cause of the disease, whether it is a cold, or allergic rhinitis, etc. and targeted treatment. Just treating the symptoms is not enough.