No, the itching doesn't go away quickly.

I have a combo of things I use daily on my face that's working great.
It's just the sun exposure factor.
When you have eczema, which is totally a catch all term, your barrier layer of skin isn't "normal".
I never had it as a child, so the Dr. suspects it's age related.
Also, as you age and your natural production of all your various hormones change, and, collagen building, which promotes skin regeneration and repair, slows.

LONG story short, it just doesn't work the way it used to, or should.
I've read that about 30% of women may experience this.
A good diet (always) helps, but there are other "triggers", too many to list, but sometimes sun exposure helps to clear it up temporarily, sometimes it makes it much worse. I sadly experience the latter.
I haven't gone and done the blood work to check all the different hormonal levels.
I'm sure there are (endless) prescriptions available that would be prescribed HAND OVER FIST by the doctors.
I discussed it some at my last appt., but I'm on the fence as to even start all that.
Some have side effects, some they claim don't.
I'd rather try to take care of it as naturally as I can, considering my track record with allergic reactions to prescriptions.
The thing is, even with natural supplements, there can be side effects, and interactions too.
I always cross reference at WebMD and look up supplements to find out.
It's fine though, I can deal with it, and I'm learning as I go. It's really just itchy, red bumps, and you can't tell at all when I'm wearing even just a little makeup, it's just the itching that's the most annoying (bothersome) part.
If this is the worst thing that I have to deal with, or go through, I can't complain at all.