Suggest Treatment For Vaginal Discharge Along With Pain And Itching In Vagina

Hello
Thank you very much for this sit
26 years old - single , Virgin lady
Complained of vaginal discharge of almost 3 weeks
it is started as small blood spot with vaginal secretions
Then turned to brown associated with itching and pain in the vagina
The first time this thing happens with me
I am very scared
Regular menstrual cycles
Please help me.