This study selected 300 swine from a herd with chronic cumulative poisoning caused by continuous ingestion of corn coated seeds containing carbofuran and thiram, including 8 deaths and 16 severely affected swine. The clinical manifestations and pathological changes of the affected swine were analyzed. All 16 severely affected swine received conventional Western medicine treatment (atropine sulfate, compound glycyrrhizin, glucose, etc.), among which 8 were additionally treated with the Gancao Jiedu decoction (Lonicera japonica, Forsythia suspensa, Bupleuri radix, Saposhnikovia divaricata, Glycyrrhiza uralensis, Talcum) as an adjuvant therapy. The entire herd (276 swine) was provided with mung bean milk and glucose via drinking water. Affected swine in the case showed severe depression, rough hair coat, muscle tremors, mydriasis and other symptoms. Necropsy revealed gastrointestinal hemorrhage, enlargement and hemorrhage of multiple organs, and inflammatory foam in the lungs. After 3 days of treatment with conventional Western medicine (atropine sulfate, etc.) alone, the effective rates for resolution of salivation, standing recovery, appetite recovery and diarrhea cessation were 87.50%, 50.00%, 12.50% and 75.00%, respectively. After 3 days of combined treatment with conventional Western medicine plus Gancao Jiedu Decoction, the effective rates for the above indicators were 100%, 87.50%, 75.00% and 100%, respectively. From day 4 onward, all severely affected swine received conventional Western medicine combined with Gancao Jiedu decoction adjuvant therapy, and all indicators returned to normal by day 7. After 10 days of adjuvant detoxification with mung bean milk for the entire swine herd, feed intake gradually returned to normal. In summary, conventional Western medicine combined with Gancao Jiedu decoction adjuvant therapy shows certain application potential in promoting functional recovery of poisoned swine, and adjuvant detoxification with mung bean milk has practical value for population prevention and control.