Ok so I got this localized cluster of itchy red bumps on my forearm on Saturday, its not spreading and its just there. It itches but I have not been itching it. I have no I idea of what it could be. It is not an allergic reaction this I know. It is not scabies, I know this too. Any ideas?

They are not rose red or anything, just more on the pinkish side. Slightly pinker than my skin. They almost look like black heads, but the head is more tanish, but small you could only see the tannish color if looking very closely. The bumps are about the size of the head of a pin. There are apporximately 10-15 bumps in the cluster. I have never gotten this beffore in my life.

And again they are localized the cluster itself is about the size of a dime.

Any ideas?

Spider got you while sleeping. Spider got stuck in your sleeve and started in on your arm. Now if you've been laying on the floor it could be a flea. Try a oral antihistamine. Good luck