I think removal from the house is the best bet! I have done that with my girls when one of them had a sugar addiction time... I removed all temptations from the house. It made my life easier, and she soon learned that it wasn't something to demand. Actually for an autistic kid with an obsession... 6 months of screaming wasn't a long time to get used too. We allow some sugar now, but its definately something that is monitored and we don't keep in the house.