The combination your sister is describing, curd-like discharge with local pain and a fishy smell together, doesn't point cleanly to just one cause, and a photo genuinely isn't enough to tell a fungal infection from something else needing different treatment.
Next Steps
A gynaecologist visit, even a video consult if an in-person one feels difficult right now, is the only way to get her the right test and treatment instead of guessing further.
Health Tips
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