My son has severe eczema (strong steroid ointment needed) and we tried everything with no luck! He bathes 2-3 times a week at most (as advised by his allergy specialist) and I found curash baby soap works for him, or at least has less of an irritating effect on his skin. I have been using it as a shampoo/conditioner for him also. But his hair does smell like wet dog, which is part of a scalp eczema condition. I am about to start using charcoal shampoo and conditioner on him and if I have success with that will look for a charcoal body wash. We have noticed quite a bit of improvement with his face (less dry patches) since buying him a charcoal pillow, so I hold high hopes for the products

physiogel is also a great product to use. you can find it at the chemist and it is around $17 for a bottle but it is designed for skin conditions. it is worth a try, maybe you could request a sample to try first.