My daughter has the same thing.It's called Kerotosis pilaris(not sure if the spelling is correct).It is blocked hair follicles.The doctor gave her a prescription for Ammonium Lactate Cream 12% to put on it.She said it will take a month or two for it to start to clear up. Hope this helps you.
I Have What Looks Like Small Acne On My Biceps And Outer Arms? I Have Tried Creams, Face Acne Treatments And Nothing Helps, Does Anyone Have A Clue?
It's a in grown hair let it set don't pop it!
Mee too
I had problems with acne on the upper back until I was 30 and found a solution. Here are some suggestions:
Get yourself a product including Salicylic acid. This costs like 10€ in a pharmacy and will last you some time. Personally I apply this while showering on my upper back but you could also use it similiar to a face wash, depending in your problem zone.
Then get you a prescribtion for a product including Zinc acetate as a topical. (at least you need a prescribtion for this in Europe). You could add zinc as a supplement (pills).
If this is not working (and I promise it will). You would have to go for harder stuff like retinol creme.
Get a pumice bar, they scour the skin better in the shower, and it helps to clear the skin up. Good luck.