I have had them before on my arms it was from my elbow to my wrist it lasted for about a week or two. Then one day i start scratching on the back of my hand and guess what pops up the strange bumps very itchy. This happen about few weeks later. Now i came back from the hospital i had a iv in my arm and when i took the tape off it started to itch now i have it again but a lot worse. People said it was probably the tape but before i didn't have tape on my arms and it appeared can someone help me out? Also i think its spreading and i have had a iv in before and it never did this before. It is also Very hot. When i scratch it clear liquid comes out.