[expand]The excessive exposure caused problems. The chronic smoke inhalation—the eye irritation, the respiratory inflammation, and the cumulative lung damage—created health costs offsetting therapeutic benefits. The carbon monoxide poisoning from poorly ventilated spaces—the indoor fires producing dangerous gas levels, the symptoms being confused with illness, and the deaths occurring from unrecognized poisoning—demonstrated that smoke had serious dangers. The particulate damage to lungs—the constant smoke exposure depositing material in respiratory tissues, the long-term damage being cumulative, and the reduced lung function affecting elderly—meant that smoke medicine had real costs that traditional users accepted as unavoidable given benefits.
The plant-specific toxicities occurred. The henbane smoke causing delirium—the toxic alkaloids being volatilized and inhaled, the psychoactive effects being unpredictable, and the dangerous intoxication sometimes resulting—made certain plants hazardous for smoke treatment. The poisonous plant confusion—the mistaken identification causing toxic exposure, the symptoms being attributed to illness rather than treatment, and the deaths from therapeutic fumigation—demonstrated that herbal knowledge gaps could be fatal. The allergic reactions to smoke—some individuals being hypersensitive, the severe respiratory distress occurring, and the treatment being more dangerous than condition—required recognizing that smoke medicine wasn’t universally safe.
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