What should parents do when one child hits the other and the other is crying?
It is important to take everyone’s feelings into consideration and remember that None of the kids are “bad”.

Both physical and emotional hurt is important. May be one child is hurt emotionally whereas other physically. The only thing the parents can do is to check that both the kids are okay. Sometimes we only check the feelings of the child who is crying but ignore the other. This may lead the child to think that Mom/Dad  always listens to the one who is crying.

Let’s take a scenario :

The boy takes his sister’s toy and sister also goes to snatch the toy back. The boy now hits the sister back and the fight starts.

Next time when this happens, you can take these steps:

Immediately remove them from the situation :

Separate both of them for some time. Let them play in another room so that both the kids and you gets the time to think over it and release the anger.

Also this will give you time to think next steps.

Get curious - "What happened?" :

To forget what happened is not the correct way to deal with these issues. Parents need to find out what happened so that they can teach the kids, skills they need to address the situation and work through the conflicts on their own.

Set a limit :

Limits should be explained to them that "It's ok to be upset and it's not ok to hit." Next time if the child finds it difficult to control the anger they can come to them and ask for help. It's hard to be a big sibling sometimes. You are working so hard to be patient.

Teach problem-solving skills:

What can you do next time? Start Discussion with them. Use imaginary play to help your children learn positive ways to resolve a sticky situation. You might pretend to be another child who has taken your toddler's favourite toy. Teach them how to use the words ("That's my toy—please give it back"), and if that doesn't work, tell them they should ask an adult for help.

Don’t hit your child :

Even you believe in disciplining the child, but remember no child is bad. It is just they don’t know what reaction to give when something happens. So In these case, we as parent can help them by saying “I can see that you felt bad, but let’s try to be polite with your siblings. ”

Prevention :

It is our responsibility to keep our children safe. When you notice that he or she is getting cranky, sit with them and help them to refuel, or encourage them to spend some quiet time there by themself.

This won't last forever. Once you help the kids with their feelings, the kid will start managing their behaviour.

So next time remember when this happens:

Checking on both kids and providing comfort to both can help manage kid’s emotions and behaviour.