Question: what to do if your 2 year old is scared of the dark?
Answer: Acknowledge the fear. While a fear of the dark may seem irrational to you, it's very real to your toddler — so ignoring it won't make it go away. ... 
Stay in bed and keep the lights off. ... 
Play in the dark. ... 
Try relaxation training. ... 
Offer a security object. ... 
Leave a little light on. ... 
Check on her. ... 
Work with her imagination.