Has anyone had to have neulasta shots to increase wbc? After my mom's first round of chemo her wbc are still low and they had to put off the second cycle of chemo for a week. They told her that for now on she will get the Neulasta shot for the next 5 cycles. I heard that this can cause horrible pain. She has not had any side effects from the first cycle except for being a little tired. Thanks for any info.