Red spots, on arms, yellow bubble in centre

[Chilenachica]

Hello, I'm new on here and need a little help, pease. Is anyone able to shed any light? There's no sensation of pain/itching, or anything else. At first I thought-zit-so squeezed. This resulted in a few days of weeping after which it scabbed over. Then appeared on other arm, went away, now appeared again.

No idea. Shingles?

bedbugs?

Ditto maybe shingles? Sounds a bit like what my blisters looked like. I'm sure there are many gross pictures on the Internet you could compare them too to judge
but if you think it might be shingles, go see the GP pronto - I didn't, and only went by the time the nerve pain started, at which point the GP told me tough, can't do anything about it now (not one of the times I appreciated his matter-of-fact approach )

Thanks, I hadn't thought of shingles, tried Wikipedia and came up with pustules, but nothing about cause. I'm trying to see the Dr tomorrow, but I'm abroad and there was no answer when I've called. Go figure, a private business with no-one looking after the phone!