Plunket is anticipating a sharp increase in calls following today's massive earthquake in Christchurch.
It says children will be feeling anxious and scared and it's important parents be patient and reassuring.
Plunket was assessing damage to Plunket offices in Canterbury.
It recommended people who needed urgent advice to call PlunketLine on 0800 933 922 and people concerned about an unwell baby could call HealthLine on 0800 611 116.
The latest information on Plunket services will be updated on its website or at www.facebook.com/plunketnz.
Plunket urged Canterbury people to conserve water if possible and follow the safety measures listed on the Environment Canterbury website.