Cang Er Zi can be used to treat rhinitis, it has the role of the nasal orifices, which is one of the important ingredients of many rhinitis medicines, common cang Er Zi rhinitis drops, etc., and many other rhinitis treatment of proprietary Chinese medicines, contain cang er zi ingredients. It is used in the clinical treatment of rhinitis, can be used for allergic rhinitis, chronic rhinitis, sinusitis and other diseases, especially for the treatment of headache caused by rhinitis is a certain effect. Of course, to cure rhinitis just rely on Cangzhi is not work, should apply nasal spray hormone, oral mucus drainage agent, nasal rinse, short-term application of antibiotics and other comprehensive treatment. Some patients drug conservative treatment is ineffective, can also consider surgical treatment. Cang Er Zi is also a kind of traditional Chinese medicine, traditional Chinese medicine has two sides, can not be taken for a long time, long-term use may produce toxicity, the patient’s liver and kidney function. In addition, when applying Cang Er Zi, it is recommended not to eat warm Chinese medicine, do not eat spicy, stimulating, seafood food.