Tell me how you cope with atopy dermatitis? I bought all ointments and…

Tell me how you cope with atopy dermatitis? I bought all ointments and creams, expensive and cheap. Hormonal ointments. I'm eating only black bread and water now. The child started after 40 days. We are in a private clinic, they just say to exclude dairy products and apply ointments. I already wash clothes by hand without detergent so as to bathe the child, I take only filtered water. I found information online that it is possible to cure psychosomatically, that the problem lies in my state (fatigue, irritation). It irritates only my husband. Who has tried going to a psychotherapist? I don't know what to do anymore, I found an article that children urinate