Yes olive oil can be added to bath water and works wonders to help cure skin conditions including eczema and psoriasis.
Olive oil in bath water also helps to soften your skin and when you add olive oil to your bath water you can shave your legs without the use of any shaving cream.
Some other good things to add to bath water to treat skin conditions including eczema are the below things.
When you have eczema a good thing to put in your bath water to help the eczema is some Dr Teals Ultra Moisturizing Mineral Soak.
You can buy it at Walmart for around $5.00 and you add it to your bath water and soak in the bath and it helps clear up eczema.
You can also add oatmeal to your bath water or vinegar, apple cider vinegar or even baking soda which helps naturally treat eczema.
Bath oils are also good for treating eczema and soaking in the bath water of any of the above things for 30 minutes per day can help get rid of the eczema.