How To Treat Cluster Like Itchy Psoriasis In The Chest?

I have a cluster of what looks like psorasis to me but its just a cluster of itchy red bumps which appear to be water filled and shiny some i have itched scabbed up i used calamine which dry them up but i still have bumps just in one area of my chest my work is worried and wont let me go to work they told me its everything from scabies to shingles they sting only a little been there for three weeks only itchy sometimes or when I start to itch them i work three jjobs and dont know if its stress i have a few tiny pnes randomly other places but not like it is on my chest i dont have insurance and im worried by boyfriend hasnt gottten anything nor is itchy but mine wont go away any idea..