Eczema

My daughter has been to countless dr appointments, tried fragrance free soaps, laundry stuff, lotions, dairy/gluten free products ect and nothings helping. We have a follow up dermatologist appointment next month but all they’ve told us to do in the meantime is continue the creams she’s been on for years and obviously not helping. Any other suggestions? Her ears crack and bleed and get infected it’s not her ear rings that’s causing it. She itches her arms so bad they blister over, her back is covered in white patches.