Thanks for the query,
Your symptoms of white discharge with itching suggests candidial infection of vagina.
Vaginal yeast infections
are extremely common. Seventy-five percent of all women develop a yeast infection at some point during their lives.
You need to get a vaginal swab test for diagnosis.
Treatment includes antifungal antibiotics like clotrimazole
I suggest you to follow the below mentioned precautions to prevent candidiasis
keep the vaginal area dry, especially after a shower;
wipe from front to back after using the toilet;
wear looser-fitting cotton underwear, which help to keep the vaginal area dry and may reduce irritation;
after swimming, change out of a wet bathing suit;
avoid chemical irritants in deodorant tampons; and
do not use douches or feminine hygiene products, regular bathing is usually adequate to cleanse the vagina.
Maintain personal hygiene.
Hope this helps.