Hi - this is a great question that I have never considered before. I'm not sure and I haven't heard this concern before. However, according to the NHS, they say, "Previous epidemiological studies of humans have shown that atopic dermatitis is associated with lower levels of skin cancers. But it is not known if this is because of the disease process or the drugs that are used to control it, such as topical corticosteroids." - (6 May 2014) - NHS. Thanks for raising!! Pete (AtopicDermatitis.net) - team member