We are going to use Tazorac on my daughter's neck. Before we use the cream, I wanted to see if any body has any suggestions how to use it. Do you put in on after bath or at night before sleeping? How many times a day? How much is typically enough (just a little or generous amount)? How long does it usually take to see the effect and I know this depends on the individual. My daughter, Lily, is now 25 months old and her neck seems to be the only area with scales with some under her arms. We appreciate any input.