Naturally, a crisis is accompanied by an overwhelming sense of dread and anxiety that lasts until the crisis is overcome. You cannot completely evade these feelings but you can minimize the impact using calming techniques.
Mindful breathing is the most effective technique to restore mental calmness. Teach your kids to practice this breathing by mindfully following the breath as it goes down in their bodies. Ask younger children to notice their belly movement that aligns with breathing in and out.
Another technique is collecting happy memories from the past and sharing them with people around you. You can also collect stories of hope and determination and keep them with you to read when you or your children feel down.
Tell them that sharing their concerns also reduces the intensity of fears. Try to find a trusted adult to share your concerns with him to reduce your stress levels. Remember that you are the anchor for your children in these trying times so you need to stay strong.