I get little red dots. I have been getting them for years. My nurse practitioner told me that they were cherry angiomas and were harmless.

I get those all the time. Anything that brushes up on my arms cause those spots. Some larger. And they last up to 2 weeks on me

They will go away after a while, but they always come back in different areas of my body. I have some on my arms right now. Next month one may be on my breast. They usually stay in the upper body area. I have never seen one on my legs.

Also sometimes they are very small red dots

Yes. I posted picture while ago asking same. I have them sometimes on different spots .but my arms are mostly