We have dry spots on our skin, I don't know what to treat them with…

We have dry spots on our skin, I don't know what to treat them with anymore, they don't go away and only new ones appear. Like lichen, dry, on the photo I already smeared them with Emoliums cream. On our cheeks we have eczema, red all the time, been fighting for two months, not eating sweets, red. Already don't know what allergy we have. And we take drops of Fenistil.