Symptoms. Yeast infection symptoms can range from mild to moderate and include: 1  Itching and irritation in the vagina and the tissues at the vaginal opening (vulva). 2  A burning sensation, especially during intercourse or while urinating. 3  Redness and swelling of the vulva. 4  Vaginal pain and soreness.5  Vaginal rash.ou might have a complicated yeast infection if: 1  You have severe symptoms, such as extensive redness, swelling and itching that leads to tears or cracks (fissures) or sores. 2  You have four or more yeast infections in a year. 3  Your infection is caused by a type of candida other than Candida albicans. 4  You're pregnant.