After a child is born, especially within half a year, children within half a year usually have very few illnesses because they can bring some immunoglobulins from the mother’s body, which have a certain immune protective effect on the child. If, under special circumstances, a child develops symptoms of a cold and nasal congestion, do not rush to give the child special medications. Because the child is still relatively small, the liver and kidney function development is not sound, irrational use of medication is easy to aggravate the burden on the liver and kidneys, causing additional damage. First of all, we should pay attention to observing the changes in the child’s condition, pay attention to feeding more water, keep warm, strengthen the accompaniment and care, you can use local drugs to relieve the symptoms of nasal mucosa congestion. However, if the symptoms are mild, it is not recommended to use drugs, usually after 3-5 days, the symptoms can be gradually relieved, and achieve the effect of cure. If the symptoms continue to worsen, fever, cough and other serious complications, we should consult a doctor in time, and if necessary, we can use anti-flu drugs for treatment.