Thanks for your query.
You are having inflammation of labia and vulva
which is due to some infection.
I suggest you to get yourself evaluated by doctor as you need oral and topical antibiotic
course along with anti inflammatory medicine.
I will not advise you to do ant self medication
,in the meantime keep area clean and dry.
Have plenty of fluids and take ibuprofen
for pain relief.
Wishing you speedy recovery.