Summarize this article in one sentence.
Unfortunately, it's possible that even with all of your help, your child will still be bullied. In this case you should step in. Set up a meeting with someone at your child's school and report the problem. If you know who is bothering your child, tell the school representative. You want to make sure that the school knows who is causing the trouble so it can respond accordingly. If you know the bully's parents, you might have to talk to them if the bullying continues. They might be unaware that their child has been bothering yours, or they might not care and say that you're making too big a deal of it. Whatever the case, it might help for your to get in touch with the bully's parents.  Don't act accusatory towards the bully's parents. Their first instinct will probably be to protect their child. Instead, say something like "I notice my child has been having some problems with yours lately, and I'd like to talk about it," instead of "Your child is a bully!" Be prepared to talk to them again. It's possible that the bullying won't stop after this meeting, so be prepared to have another talk with them if you have to. If you don't know the bully's parents, it's better to go to the school. Your child's teachers and/or principal can then approach the bully's parents if they think it's necessary. All kinds of bullying put a lot of emotional stress on your child. Prolonged bullying can lead to depression, anxiety, violent outbursts, and suicide. You can prevent this by taking your child seriously and getting him or her help when it's needed. Contact a mental health professional if the bullying continues or you notice any signs of emotional distress in your child.

Summary:
Report the problem to your child's school. Talk to the bully's parents. Get your child psychological help if needed.