Are there any other diseases that are less common if you have eczema?

High blood pressure (hypertension) seems to be rare in adults with
atopic eczema, whether it is active or not. This has been found in
studies, but no definite reason has yet been established.
When I saw a dermatologist about my eczema, he said I
also had keratosis pilaris and gave me a cream for that – I
thought it was all part of my eczema, but have I got two
diseases?
Keratosis pilaris is a common condition in which the hair follicles
in the skin become filled with plugs of keratin. It usually begins in
childhood and tends to improve as you get older. The outer aspects
of the upper arms and thighs feel rough because of the plugging of
the follicles and can look red. Many people have a very mild form
of it, but it does seem to be more common in people with atopic
eczema. You do have another disease but one that is associated
with having eczema. Creams that help to soften and ‘dissolve’ the
keratin plugs are known as ‘keratolytics’, and this may be what the
doctor has given you. They will only ever have a temporary effect
on the skin, so you need to keep using them.