China Rose (Hibiscus rosa-sinensis) has a long history of use in traditional medicine systems, particularly in Asia. In traditional Chinese and Ayurvedic medicine, various parts of the plant have been employed to address a range of ailments, including coughs, colds, and mild respiratory issues. The flowers and leaves are sometimes used in decoctions or teas that are believed to help soothe symptoms such as sinus congestion, though these uses are largely anecdotal and based on traditional knowledge rather than rigorous clinical investigation.

Despite its traditional applications, there is minimal scientific evidence specifically supporting the effectiveness of China Rose for treating or alleviating sinus congestion. Most of the published research focuses on its antimicrobial, antioxidant, and anti-inflammatory properties, which are general and not directly linked to relieving sinus congestion. No high-quality clinical trials have demonstrated its efficacy for this particular condition. Therefore, while its use for sinus congestion might be justified by tradition, the overall strength of evidence is weak, and it should not be considered a proven or well-supported remedy for this purpose.