Pityriasis Alba? But I have seen those with this problem and usually the difference is very stark unlike yours.

Another type is probably bacteria infection due to sweating but it is rarely on hands. Those white one is usually on face. Rarely on hand.

https://www.healthhub.sg/a-z/diseases-and-c...sive%20sweating.

This post has been edited by andrekua2: Mar 20 2023, 11:32 AM