养痈遗患 meaning in English

a carbuncle neglected becomes the bane of your life -- leaving evil unchecked spells ruin.; appeasement will bring great disasters afterwards; bring up a raven and he'll pick up your eyes.; let an ulcer grow and fail to cut it in time and regret it afterwards; neglecting a carbuncle will cause trouble.; source of endless trouble; cherish a snake in one's bosom