I have little red bumps on my penis head and it just itches and ive had for about 3 days. what could this be from?

Here are some ...: What you described is acute so it is related either with acute infection / inflammation or with physical / allergy-related irritation. But, regardless of its cause, the essence of care is same with keeping the affected area as clean, dry, & ventilated as possible (of course, with washing/drying) plus gingerly using antifungal + steroid cream 1-2 times daily of