It is not recommended to use Sinus and Cynanchum as a tea substitute; Cynanchum is toxic. Nasal congestion can be treated by other medicines or ways. 1. Xinyi has the effect of dispersing wind-cold and clearing the nasal orifices, and is mainly used for treating nasal congestion caused by wind-cold cold, nasal abyss (mainly manifested as filthy nasal discharge, the amount of which cannot be wiped clean). Xinyi is often used in conjunction with Cang Er Zi, Xin Xin, and Bai Zhi. Need to pay attention to nasal disease caused by yin deficiency and fire (Yin essence loss in the body, there is a deficiency of hyperactive fire) should not take this product. 2. Cang Er Zi has the effect of dispersing wind-cold, nasal orifices, dispelling wind-dampness, pain relief, mainly used in the treatment of wind-cold cold caused by nasal abyss, for the treatment of rheumatism and paralysis, rubella itching, scabies and leprosy also has a certain effect. This product disperses qi and consumes blood, and should be used with caution by those who are physically weak. Overdose may lead to poisoning. Chinese medicine treatment must be identified, please use the medicine under the guidance of a professional Chinese medicine practitioner, not self-medication.