Eradication of Evil
The Quran states that good deeds eradicate evil deeds. (11:114) This means that if you have done something evil, then do something good. This will remove the effect of evil. For example, if you have called someone evil, then do some good in return. If you have harmed someone, then do some good deed to compensate for it. If you have hurt someone, apologize to him. If you have shown arrogance to someone, bow down to him. If you have dealt with someone immorally, then deal with him morally. If you despise someone, then give him a place of honour. Such an attitude on your part will put an end to evil.