Was Overexposed To Sun About 3 Weeks Ago And Severely

Was overexposed to sun about 3 weeks ago and severely burned my shoulders only (everything else was covered) Had raised bumps for about a week. Then developed rash/bumps on abdomen that have now spread to shoulder blades. Incredibly itchy, some of the bumps are bright red, other are white. Now have on legs along with low grade fever.