Hi thanks for asking question.
Here are few possibilities.
1. As you said it might be
fungal infection.
Patient feel itching also.
2.The chlamydia and
gonorrhea can be the cause.culture done for its diagnosis and treated accordingly.
3.third possibilities of trichominiasis if profuse malodorous discharge.
4.
Bacterial vaginosis can be the cause as red elevated lesion present.
Here are some general tips to treat your condition.
Clean you vaginal area with adequate water and soap.allow it to dry completely.
Drink more water and fruit juices.
Avoid tight clothing.Cotton cloths helpful.
For bacterial vaginosis antibiotic needed and for trichomonias with
metronidazole.
So first treat your lesion as fungal and then go for other diagnosis.
I hope my suggestion will help you.