Brief Answer:
Probably presence of infection
Detailed Answer :
Hello! I ve read carefully you symptomes.
The area of the vagina,
vulva is a very sensitive zone, and the itching and the pain can cause a severe discomfort. The causes of your symptomes may vary from yeast infection, to
bacterial vaginosis,
STD ( sexually transmited desease ) which may be complicated, and even chemicals that are presents in different types of soaps, or detergents, can cause the symptomes that you are experiencing.
Most cases of
vaginal itching will heal on their own, in other cases if this symptomes persists longer than 7-10 days, with no sign of any improvemnets, it is better to check with your OB GYN Doctor, whom may do a Pelvic axamination. Also you need to do some lab tests including blood and vaginal secretion/discharge test.
After the results, the doctor will prescribe a course of treatment depending on the lab results.
Feel free to ask again if you have any further question.
Best Regrads.