my dad, aunt, dh, ds, dd, mil, sil, and numerous nieces and nephews all get it... i think we have tried just about everything! the fish oils seem to work the best for dh, dd, ds, mil sil and the nieces and nephews. dad had luck with getting a water softener and using a coconut oil based soap and lotion combo, for me the water softener and coconut oil lotions, my aunt swears by the soap says its gotta be dial gold bar (this didn't work for dh though, he still had it till he started taking the fishoils)
other things i know were tried oatmeal baths, aveeno oatmeal lotions, eczema relief lotions, baby eczema lotion, oatmeal soaps and lavender oil and soap/lotion. coconut oil instead of lotion, coconut oil based soap, as well as several otc itch relieving creams and aquaphor, and prescriptions from the drs.