Vitamin D is good for skin and eczema. Make sure you get vitamin D3.

Cod liver oil and fish oil are not the same thing. Cod liver oil has vitamins D and A; regular fish oil has very little if any.

If you have dandruff, pure oregano oil (OOO) mixed into your shampoo is very helpful; it's also good to cure eczema of the scalp. OOO also kills yeast.