I had a terrible eczema for more than 2 years on joints of my fingers. It was in a form of little bumps that started on the joints of index finger on both hands and with time spread around to other joints and also spread to the area near the finger nails. I apply (topically) apple cider vinegar whenever I have an itching episode and then, I apply a generic "baby rash" cream with 15% zinc. I also use propolis (bees wax) to prevent inflammation (I also used polysporin for the same reason). After ~ 2 weeks the eczema was essentially gone. But when I stop using ACV (apple cider vinegar) new patches appear and it takes 2 weeks to completely heal the infected region.
Remark: I noticed that when I regularly use ACV, even when I don't have an itching episode, the spread of the "bumps" stop and the infected area gets better.