How to relieve the symptoms of protein diathesis in a 4-month-old baby? Is it necessary to go to the doctor?

In the case of such young children, it is necessary to visit a pediatrician who will decide on further proceedings. It may be necessary to implement appropriate nutrition, e.g. https://www.gdziepolek.pl/kategorie/mleko-hipoalergiczne If the pediatrician deems it justified, he will refer the child to a dermatologist or allergist. Until the visit to the doctor, you can use emollients for bathing, e.g. https://www.gdziepolek.pl/produkty/26991/emolium-dermocare-emulsja-do-kapieli-plyn/apteki https://www.gdziepolek.pl/produkty/95970/emotopic-emulsja-do-kapieli-plyn/apteki and soothing creams, e.g. https://www.gdziepolek.pl/produkty/117889/masc-emolientowa-little-frank-precious-flax-ointment-masc/apteki https://www.gdziepolek.pl/produkty/47457/mediderm-krem-krem/apteki https://www.gdziepolek.pl/produkty/89133/eloderm-krem-aktywny-od-1-dnia-zycia-krem/apteki More information can be found here: https://www.gdziepolek.pl/artykuly/azs-atopowe-zapalenie-skory-u-dzieci-i-doroslych