Hi there. So I have noticed that I keep getting red, itchy, almost welt like bumps that will show up randomly all over my legs and on my butt cheeks... I know a few of them are mosquito bites, but they will just show up randomly and I m kind of worried as to what they are. Some of them will scab if I itch them too much but the others are just very red, and some bruise. I also have small like bumps all over my chest that almost look like small pimples?? I just really need some answers as to what these bumps all are, especially the ones on my butt cheeks and the itchy welted ones I get randomly on my legs.