Getting Elmer's glue in your hair is a typical rite of passage for most children. It's not very difficult to remove the glue from your own or your child's hair, even if it has become a sticky mess. You most likely have the tools at hand to resolve the problem in less than an hour.
Wet the hair and apply conditioner to the glue-covered area.
Cover the hair with a towel, and allow the conditioner to soak into the hair for 20 minutes.
Comb through the hair with a fine-tooth comb, dislodging the glue from the strands of hair.
Rinse the conditioner out of the hair.
Use baby oil if the conditioner does not work. Repeat the same process as above, and allow the oil to sit for 20 minutes on the hair before combing.