Suggest Treatment For Rashes All Over Body

Hi I have had a rash all over my body now for several weeks. I believe it started on my legs and feet; smooth red splotches that clump together and itch. the first one I really took notice of was under my nipple, than one on my stomach appeared then several on my lower back spread out. I treated them with polysporin and that made them dissapear fairly quickly and I thought they had gone away for about a week now I have several new ones on my feet, legs, forearms and two large clusters on my shoulder blades, one on my spine and a small one on my stomach. Thank you for any help, I ll be going to a clinic tomorrow to have them checked out.