How To Get Rid Of Red Itchy Blotches All Over The Body?

Hi, over the last few years l have had lesions appear on different parts of my body, usually single ones, and they would disappear shortly afterward. They all looked the same, no matter where they were, small red itchy circular blotches, with a yellowish center. However, for the last few months more have appeared, and the sizes have increased, also they don t seem to be going away.