Hello dear Understand your concern I think it is most probably due to yeast infection as it is increased by tight clothing that increase sweats. Exact diagnosis should be made by vaginal examination, vaginal swab test and urine analysis. Once you have diagnosed I advice you following advice and medicine. Apply letrinim cream or suppository 2 times daily for 4-6 week. Tablet flucanazole to prevent recurrence. If itch is severe then you can apply mild steroid application cream like 0.05 % hydrocortisone. Wear loose pure cotton clothes,bath or shower frequently 2-3 times/day, Wash vagina with warm salted water after urination You can also use V vaginal plus wash to mainatian hygiene. Change wet clothing as soon as possible after work out and avoid sweats in pelvic area, Use anti bacterial soap or mild neutral soap like dove Avoid perfumed cosmetics and soap, avoid excessive sweets and yougurt in the diet. Take treatment for 4-6 week to prevent the infections. Hope this may help you Best regards Dr. Sagar