Why does copal incense make you feel ill?

Copal incense can make some people feel ill due to its strong aromatic compounds, which can trigger respiratory irritation or allergic reactions in sensitive individuals. Additionally, the smoke produced can contain particulate matter and other volatile organic compounds that may cause discomfort or exacerbate existing health conditions, such as Asthma. Lastly, the quality and purity of the copal used can also play a role; impure or contaminated incense may produce harmful byproducts when burned.