as much as i would like to help you with this dermatological puzzle it would not be possible for me or any medical professional to offer you an specific explanation or diagnosis for these "red spots" blindly over the internet. in order to be properly diagnosed (and treated) a medical provider would need to physically see these spots and take an extensive medical history -- obviously not something that can be done on-line.
red spots on body. they began on my elbow and forearm only about 3 or 4 spots but they disappeared only to come back on my chest and back. i have a eliminated many possible causes from the fact that my girlfriend and i sleep in the same beds (her bed or my bed) come in to contact with the same things we both keep up the same daily routine and she doesn't have them. the spots are red occasionally itch slightly raised feel warm to the touch and are about the size of a dime.