Recite positive affirmations: Try as you might to ignore the bully when they are saying ugly things about you some of these things might stick in your mind.If you feel at risk of physical harm from the bully, you should consider involving the police. If it's happening at work, you should take it to your boss, or if it's happening at school, you can report it to a teacher. Report it: If the bully refuses to let up after having a conversation with them, you should take the issue to a higher authority.
While this doesn't excuse their behavior, having a conversation with the bully might help them realize just how much their actions are hurting you and hopefully deter them from continuing.
If it's safe for you to do so, simply walk away. When the bully starts verbally attacking you, remove yourself from the situation if you can. If the bully isn't disrupting your personal or work life, don't engage with them.