Batavia cinnamon (Cinnamomum burmannii), also known as Indonesian cinnamon, has a history of use in traditional medicine systems, particularly in Southeast Asia, for treating respiratory ailments, including coughs. The rationale for its use is rooted in its warming properties and aromatic compounds, which have been thought to help soothe the throat and reduce irritation. In traditional herbal medicine, cinnamon is often used in combination with other herbs to make teas or decoctions intended to ease cough and cold symptoms. However, the direct scientific evidence supporting Batavia cinnamon’s efficacy in treating cough is limited. Most available studies on cinnamon focus on its antimicrobial, anti-inflammatory, and antioxidant properties, but these are usually general or pertain to other species of cinnamon (such as C. verum or C. cassia). Some laboratory studies suggest that cinnamon extracts may inhibit certain bacteria and viruses that can cause respiratory infections, but clinical trials specifically investigating Batavia cinnamon for cough relief in humans are lacking. In summary, while Batavia cinnamon is traditionally used for cough, the evidence supporting this use is primarily anecdotal or based on traditional practices rather than rigorous scientific validation. Therefore, its use for cough should be regarded as a traditional remedy with limited evidence from modern research.