Suggest Treatment For Red Bumps In Biceps

I am 17 & have these bumps (red and very small) on my biceps and abdominal area. I have had this condition since i was 12, it doesnt it or hurt but if you run a hand over them, you can lightly feel them. I heard it could be this thing that forty to sixty percent of people have. I want to know if I could reduce its redness ot make them go away. I at times dont like to go swimming because of this. Please help?