Thanks for the query to H.C.M. Forum.
As diagnosis is confirmed so these multiple bumps are due to Hepatitis C
as these are sequelae of this disease.
Hepatitis C has same laboratory features like Hepatitis B
but aminotransferase level fluctuate more and to be lower, especially in patients with long standing disease.These bumps are violaceous flat topped papules and plaques.
In my opinion consult a physician ad get his opinion as this seems to be a case of Lichen planus
Sexual contact spread the disease ( unprotected).