Thanks for your question on Healthcare Magic.
I can understand your concern.
By your history and description, possibility sexually transmitted infection (STI) is more.
You are sexually active, so you are always at risk with STI. Your symptoms like bumps in labia, tenderness, Itching, pain etc are classical symptoms of STI.
So consult gynecologist and get done clinical examination. You will need antibiotics.
At present, you should first avoid
unprotected Intercourse. Keep proper hygiene of private parts. Avoid moisture and perspiration in private parts. Take combination of painkiller and anti inflammatory drugs. Wash your genital area with
betadine solution twice daily.
Don't worry, your pain will reduce with all these.
Hope I have solved your query. I will be happy to help you further. Wish you good health. Thanks.