German phrase
Kein Grund zur Sorge.
Meaning
There's no reason to worry
When to use it
It reassures someone. Common with friends and family; a more polite form suits superiors.
Example dialogue
Ich habe seit gestern starken Husten, ist das schlimm?
I've had a bad cough since yesterday. Is that serious?
Kein Grund zur Sorge.
There's no reason to worry.