Experts say babies are less likely to cry if they're given a few drops of sugar water right before a vaccine shot.
The research published in the Archives of Disease in Childhood is based on clinical data from 14 studies.
Sweet solutions seem to have properties that help relieve pain. Researchers say it not only minimizes a babies' discomfort, it also makes parents feel better.
And, if the procedure isn't so distressing, parents may be more likely to bring children back for future vaccines.