I have ringworm on body and is dark and scaly?

Maybe ringworm: A round scaly sore on the skin can be ringworm, which is caused by a fungus, and the rash is called tinea corporis. Eczema rashes and psoriasis rashes can also cause a round scaly sore and look like ringworm. A primary care doctor or dermatologist (skin doctor) can evaluate to make a diagnosis, and then give details on the treatment of one's particular diagnosis.