I know a lot of people who deal with eczema and related skin conditions. Recognizing the triggers for flare ups is important. Humidity/changes in weather is a big one. Knowing what products help symptoms/make them worse is another one.

I'd say start with the basics: drink more water, use head&shoulders shampoo, get some good unscented lotion (Aveeno). The target house brand "up&up" "intensive healing lotion" with 1% hydrocortisone works really well on hands/dry spots/blisters. I use it every winter. Drink an oz of olive oil every day why not