Itchy small red bumps on sides of body, what is this from? (Photos)

I have small red bumps on the sides of my body. They are not on my stomach but just each side. They itch and it doesn't look like eczema or bed bug bites but I'm probably wrong. I did wear a really itchy lambs wool sweater and I'm on accutane so my skin is pretty dry. It itches more when I shower with hot water. Thanks in advance :)

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