Thanks for your query, i have gone through your query, the soreness and the white patch
on the tongue could be secondary to the hepatitis c viral infection and it can also be superadded with fungal infection
like candida....nothing to worry, take medicines for hepatitis c virus
, the soreness and white patch will come down automatically...maintain proper tongue brushing and oral hygiene
...do saline gargling after consuming food. if it doesnt subside consult a oral physician....i hope my answer will help you..