Suggest Treatment For Itching All Over The Body

I feel itchy from the inside out all over! I have clusters of reds bump by my breast on the outside also a few under my breast and a couple on my breast! I also have a few clusters on my upper thighs on the inside, The bumps don't bother me, just don't know where are why I have them, but my main thing is very itchy all over with no explination what so ever from head to toe! The bumps were not there yesterday as well!

Thank you for your help!