A lot of women dont experience cllmaxs from vaginal sex, this is not in itself a sign of bad health. They still get pregnant and are fertile.
I had a fungal infection in the genital area once, which obviously doesnt lead to anything good in the bedroom, but ketoconazole cream cleared that nastiness away in 20 hours. For females, cream is hard to apply to affected areas, and oral antifungal might be needed.
What makes you believe you have a candida infection?