Hello There. I can understand your query but its hard to comment anything on your condition without actually seeing the lesion. either you should have attached a picture of the lesion. also is there any pain or is it a painless lesion? these details will also help in coming to a diagnosis. i suggest you to consult a dermatologist on this issue also get a VDRL test done. once a diagnosis is established, it can be treated very easily. Best Regards. Dr. Anil Kumar Jain.