That pic is a few years old, she has got far worse as she has got older.
I think the problem is that people think it is a minor issue, but in actual fact it is a pretty major one.
The specialist prescribed us mometasone at quite a high concentration for her torao and synalar for her face, along with hydramol ointment. She is also on 30ml of antihistamine every day, with emergency rescue dosea available for the extreme sudden onset flare ups.
I would make sure you ask for allergy tests too. They flagged up Dd was allergic to dogs even though she had never shown any signs of allergy around my parents dogs (our own were hypoallergenic due to her dad's allergy).
I would strongly suggest keeping a diary of everything she does and eats and the reactions/flare ups she has. We found Dd is hyper sensitive to so many things through this... A small example being grass, ctmitric fruit, fresh strawberries (although can tolerate jam fine) she has such a severe reaction to pineapple we have to treat it like anaphylaxis, she is alps allergic to ibuprofen. She also has urticaria and reacts to heat.
The pics of your Dd show the key 'sweat' areas, try and keep her in lose fitting cotton clothing where you can, avoid tights etc. Also if she gets it around the top of her legs/crease of her bum then try not to use knickers as the elastic can irritate and trigger, Dd wears the short style pants as the don't have elastic round the legs - the hospital suggested it and it has been amazing the difference.
The skin is our largest organ and its so very sensitive. But so painful when it flares up.
It may not work on your Dd but aldi do their own version of sanex bath wash, it has been Brill for Dd as she cannot use any soap products and even stuff like child's farm gave her issues.
Also be really careful with anything that has aloe on it, massive trigger for Dd too