What are these red spots on my stomach and chest? (photos)

The past week or so there's been a bunch of spots forming on my stomach. There's one large one and several smaller ones. I've been putting anti inflammatory cream on it so they aren't as red now, though when I first got them they were very dark red. They seemed to appear overnight. It doesn't itch and it hasn't bothered me. I've been thinking Pityriasis rosea though the smaller bumps haven't spread to my back or legs. What is this? Thanks for any help x

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