question: have these Itch s on my knuckles (really itchy) and it has been there for bout a week I have now noticed it has gone to my other knuckle of my Outher hand. It feels like a nettel sting but isn t a nettle sting. I can take a picture of them so u can see but it is getting me worried as it cud be contagious, seeming how I have the same on my outher hand