Thanks for posting your query at DoctorSpring.com.
I can understand your concern.
The lesion could be a wart. I would recommend that you get it excised and the doctor can send it for histopathological examination to the lab.
Alternatively, Application of duofilm lotion once daily to the lesion could also be tried to resolve the lesion.
Hope my suggestions were helpful.
Please let me know if you have any queries.