Zee said if a melatonin or sleep-wake cycle disturbance is to blame, parents can take steps to change these factors without drugs.
"Don't get too much light at night. Try to get more light during the day. Take the baby outside during the day, and at night, have a sleep environment that's darker," she suggested.
If your baby's colicky time is at night, try to avoid bright lights or stimulating sounds, such as from the TV. And don't bounce the baby around too much, she said.
Learn more about colic from the U.S. National Library of Medicine.
Copyright © 2012 HealthDay. All rights reserved.