痈 ()—

carbuncle

Examples:

养痈贻患—

lit. foster an ulcer and bequeath a calamity (idiom); tolerating budding evil can only lead to disaster

•

cherish a viper in one's bosom

养痈遗患—

cherish a viper in one's bosom

•

lit. foster an ulcer and bequeath a calamity (idiom); tolerating budding evil can only lead to disaster

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External sources (not reviewed)

自古以来，金三叶草都一直被视为饲料作物，同时也经常被视为药用植物（尤其是在法国南部），用于治疗 痈疮和 瘙痒。

clarinsusa.com

A fodder crop since ancient times, it is also a medicinal plant frequently used in the country, particularly in the south, to cure sores and scratches.