At around 6-weeks (last week), my DS developed what I thought was heat rash which appeared as raised bumps on his cheeks, arms and back. The bumps very quickly turned into dry skin and it was apparent that it was eczema. I also noticed that he'd developed cradle cap at the same time. Now, very suddenly, his just-the-other-day perfect skin is covered in about 4 different kinds of eczema/dry skin on the above parts of his body. On his cheeks, the skin is tight, dry and scaly (which has actually lead to pigmentation). On his forehead, it's very rough and 'corse' - probably the driest of all the eczema regions. On his arms, it's flaky, scaly and still a bit raised and bumpy. On his back, it still presents as bumps/heat rash but I'm pretty sure it'll soon morph to have the same kind of appearance as that on his arms. On his scalp and eyebrows, he suffers cradle cap.
My question is the following: is this likely to persist for long? I know that some babies go on to have eczema into toddlerhood, or even childhood, but I'm really hoping that this is just a brief, one-time thing. Does that happen - that a baby may get eczema once in his/her early weeks of life and not go on to have a long-term problem with it? Really hoping that's the case, and that it'll resolve on its own.
Just to add, he's exclusively breastfed and my diet does not include dairy as I'm vegan (I know some people suggest cutting out dairy). I'm currently in the process of cutting out gluten, hoping/suspecting that his eczema may be the result of an allergen from my diet (I've read that the root cause of eczema is an allergen). I'm trying to locate a potential allergen by eliminating certain foods from my diet.
Thank you!