Nasal congestion is usually caused by common cold, flu, and rhinitis. If the body has the phenomenon of nasal congestion, you can go through two aspects of home treatment and medication to relieve the phenomenon of nasal congestion. 1, home treatment. You can increase the humidity in the room, which is an effective way to increase the humidity can make the blood circulation in the nasal cavity faster, which is conducive to reducing nasal congestion; encourage patients to drink more water, which can help dilute the mucus and avoid drinking drinks containing caffeine, which can lead to dehydration and aggravate the condition; you can also use hot compresses, placing hot towels on the nose can effectively relieve discomfort, which is conducive to the smooth flow of the nasal cavity and prevent nasal congestion. 2, drug treatment. For the treatment of nasal congestion can use two types of antihistamines and decongestants. Antihistamines can reduce the amount of mucus, while using must be careful not to overdose, the use of time should not be too long, because there are side effects of drowsiness. Decongestants work by constricting the blood vessels in the nasal cavity. Be careful when using decongestants: some drugs can cause cardiac arrhythmias. Therefore, the drugs must be used under the guidance of a medical professional. In conclusion, when nasal congestion occurs, home treatment and medication can be used to relieve nasal congestion, but when the condition is relatively mild, it is recommended to use home treatment.