How old is your child? I know when my daughter was younger I would let her cry it out. After awhile, she knew that I was not going to feed into her tantrums, and it gradually faded away. Now, she is 3, and when she gets upset or wants something she shouldn't have, I just ask her nicely, if she would rather sit out in time out until she is ready to be nice. Everyone is different and every child is different, also every situation is different, just stick with your own plan.