Hello a lump which swollen and painfull ,,,,you most probably seem to have some sort of infection just like boil or fruncle,,,reguarding cure you need lifestyle modification with medicines,,,first adapt healthy lifestyle reguarding your sexual life..use clean undergarments of cotton,,,wash your area properly,,,use clean toilet,,,now medicines,,,,use
brufen 3times-aday,,,use cyrocin500mg 2 times a day for 7 days,,,,locally app,y some antibiotic ointment that is easily available...complete the course of drugs if still persistant consult gyanecologist,,,stay blessed