Thank you @rolph. Welcome to Mayo Clinic Connect. I had not heard of Hypocomplementemic urticarial vasculitis syndrome (HUVS) but did find some information about it:

Hypocomplementemic urticarial vasculitis
-- https://rarediseases.info.nih.gov/diseases/6725/hypocomplementemic-urticarial-vasculitis

You ask a really good question on whether or not the skin will recover. I'm sure it's different for each of us. I have no medical training or background but I think more and more that it also has to do with aging so if you are fairly young I would think chances are better. I'm an old codger so I just try and take it one day at a time and do what I can to keep it from getting worse. One of the things I try to do to help with the thin skin problem is keep the skin well hydrated with a good skin lotion or creme. Mayo Clinic has some good tips here to consider:

-- https://www.mayoclinic.org/healthy-lifestyle/healthy-aging/expert-answers/thin-skin/faq-20057753

Hoping some others will chime in with their suggestions.