Is moxibustion effective against the coronavirus?
In general, moxibustion (burning mugwort) does not have a clear therapeutic or preventive effect against the coronavirus. The detailed analysis is as follows:

The components produced by burning mugwort primarily serve to purify the air and soothe emotions. Current scientific research has not confirmed that it contains substances capable of killing coronaviruses or blocking viral transmission. Coronaviruses have a unique structure and require specific disinfectants or high temperatures for inactivation. The temperature and concentration of components generated by moxibustion are insufficient to meet the standards for viral inactivation, nor can they stimulate the body to produce immune protection against the virus. Therefore, relying on moxibustion cannot achieve treatment or prevention purposes, and blind dependence may lead to neglect of proper protective measures.
For daily protection, it is essential to consistently wear masks, wash hands frequently, maintain indoor ventilation, and avoid crowded places. When performing moxibustion, choose a well-ventilated environment and avoid prolonged use in enclosed spaces, which could result in excessive smoke concentration and cause respiratory discomfort. Individuals with asthma, rhinitis, or other respiratory conditions should尽量 avoid exposure to mugwort smoke. Regularly disinfect household surfaces using chlorine-containing disinfectants, maintain personal hygiene, follow a regular sleep schedule, eat a balanced diet, and strengthen overall immunity—these remain the key factors in effective prevention.