Butt bumps-not sexually active. What are these??

Patient: I don’t know what these bumps are. Some are red and itchy, some instantly scab and or aren’t itchy. They’ve been around for at least a few months. I’ve tried washing it with iodine and hydrogen peroxide and haven’t had any relief. Does this look like acne, a rash, bacterial infection, etc, and what causes this and how can it be treated?

Doctor:

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