Whar Causes Red Spots On Abdomen And Thighs?

I have these red spots that started 3 years ago. They started spreading and now I have a large patch on my stomach, and some more spots on my thighs and around my breasts. They are now on my neck, but those are white and one of them has 2 small scab looking things on it. They do not hurt, burn, itch, or otherwise bother me. Can you please tell me what you think it may be?