Much likely eczema since it is triggered by what you consume..

I hv psoriasis.. very dry, itchy.. always need to apply cream to moisturise my skin. I have it on my right fingers.. and on both of my feet. During dry days or in air-cond space, it gets dryer, patchier & itchier.. ive tried a lot of products. Currently using Aqua Cream. Im avoiding steroidal creams. Aqua doesnt hv. Cheap also rm16 /500g. Bought at goergetown pharmacy at my place