If you're getting redness with itchy skin/exema/etc, it is more likely a circulation issue. What to do about it? Not a clue, other than using good creams to combat any rashes/itchiness. Something high in vitamin e, and anti-fungals like tea tree oil help too. If it's serious, get a medicated steroid cream from your doctor.
I used to think all hands and feet problem was all circulation issues , I also get very blotchy ( mixture of red and white) but they are much more than just that.
Yesterday my toes finally show sign of raynaud symptom at last. Now I'm fully and completely had enough to claim that I experienced all the hands and feet known in public records as the phenomanon type of syndromes today.
My chilblain : cause by disconnected tissues red white blood cell , it's clearly feels like a very bad inflamation. it's suddenly feeling like it's burning, it starting with tenderness when moving feeling tingly itchy , shinny tight skin bright red color. THEN it gets super blotchy red white spotting or mix patches. When they getting worse it will get swellen very sore with cramps aches and pains in finger and hands joints like a wide spread nerve pains in the hands or feet area. When it gets extremely bad , my fingers and toes will get bruises and very tender . If left untreated for long time it will start to look dead. Every pains burns itch cramps or swollen or dead like will LAST For months, mostly in winter . Sometime summer if the outside and inside temperature are too far different from each other.
Treatments : It needs to be treat with very very slowly changing temperature in hands and feet in water , can't be too fast or it won't get fix and get worse.
Perasthesia: In hands and feet problem , I gets bright red hot tingling burning like a bad scratchy dry skin or super heat skin burning like they are on FIRE!! , aches cramps pains sensation like hundreds of pins and needles in hands and feet sometime spreading to wrists or ankles like bad sprains.
Treatment : quick ice cold temperature change will get rid of the red burning stinging pains, keep cool.
Raynaud : This one need Vickythecat to explain it cause I'm just only 1 day old in this symptoms I can only say that it's cold and it's super white , I have to reheating my self for it.
For me first treatment was quickly soak in hot bath.
Circulation treatment can help but I think it's more of the brain dysfunctional command to nerves and then nerves causing blood supply to react out of bounce. I could be wrong cause although temperature treatment seems to always help it's always coming back over and over again on it's own.