Severe nasal congestion in children who are unable to sleep may be related to factors such as infection or allergy, and requires targeted treatment for the primary disease, which can be done through general treatment and medication. 1. Due to infection or allergy and other factors to stimulate the nasal mucosa, so that the nasal secretion increases, further blockage of the nasal cavity can lead to children breathing difficulties, unable to sleep. At this time, general treatment is feasible, such as appropriate elevation of the head or lying on the side, hot compresses on the nose and cleaning nasal secretions. This is conducive to relieve nasal congestion, to maintain smooth breathing. 2. Medications include nasal irrigation with saline, nasal spray with glucocorticoids such as mometasone furoate, oral antibiotics or antihistamines such as penicillin and fexofenadine. Follow your doctor’s instructions for dosage. If you find that your child’s nasal congestion is so severe that he or she can’t sleep, you should seek medical advice and treatment under the guidance of a doctor, and should not take medication without authorization to avoid delaying the condition. Pay attention to rest on weekdays, closely observe the condition of the child, and maintain a regular routine. All of the above medicines should be used under the guidance of a doctor.