I'd recommend getting to a doctor to get them checked out if they are still bothering you at this point- it could be a lot of things such as a bug bite, allergic reaction to something (maybe a new lotion or other product), hives, or a number of other possibilities. It's best for someone to exam the spots in person and get more of your medical history to determine what it is. You can try placing a cream on them- such as a Benadryl cream to see if that helps alleviate the itching too.