Hi I Have Boil On Top Of My Ass..its Been

Hi i have boil on top of my ass..its been 6 days already..i consult a company doctor,but he instructed me to put warm compress and put some tropical ointment like bactroban...then mefenamic for the pain..but i think my boil is getting bigger ang more painful what would be the best thing to do cause its affecting my work...