Fungal Infection at Groin?

hello...i m a 21 F and i went to a GP recently who diagnosed me with fungal infection at the groin areas...the infection started around a month ago...he only gave me anti-fungal cream which i have been using for the past 5 days...despite using the cream....nothing seems to get better and more tiny bumps are appearing at areas near the groin as well....i wonder if anyone noes tt is it natural for new bumps to appear at this point in time and how long does it take for the fungal infection to go away ?