hello there.
white discharge is a fungal problem. wash with a pH balanced solution.
there are something called antifungal pessaries available at the chemist, use those. follow the instructions given on the package on how to use it. use for 7 days.
you should get your
sugar levels also checked as people suffering from altered sugar levels are more prone for this kind of problem.
consult a gynaecologist for more help.
regards