Thank you - about a month ago a circular rash formed on the front of my shin, right leg. It was not an open wound, no swelling, but red and ithcy and a bit painful. About the size of a silver dollar, it did has not heal and in the past weak the pain has migrated to my ankle (front center) moderate pain, tingling sensation - almost a slight burning sensation on the skin surface.. The dermatologist said it was not fungal but was at a loss. My family doctor also seemed stumped. A few years ago I suffered a spider bight and necrotic tissue on the top of my foot - same leg. Also, I have mild CKD ( creatin about 1.9 on average) and mild gout from time to time. Otherwise healthy, active. Good BP, Any suggestions ?