I need to find out if any of the ingredients in the skin cremes I use on my daughter could interact

My daughter has bad dry skin and exzema and the dermatologist told me to use Aquaphor on her right after her bath. He also said that various time during the day to keep her moisturized using a fragrance free creme other than Aquaphor. He also perscribed Topicort (a steroid creme) to use in her bad spots. Well, now her body (other than her face), especially her back is looking worse. I don't put the aquaphor on her face and her face looks pretty good. But I have been using both the Aquaphor and then then the store brand fragrance free creme on the rest of her body. So I am not sure if the Aquaphor is causing the reaction or if it could be the combination of both items. I wanted to see if I can find information on the ingredients in both products and to see if there are any possible side effects or interaction issues. I can't find anything on line. Anyone have any suggestions.