Vaginal yeast infection, an infection that affects the vagina and often occurs as a result of taking antibiotics.It’s red and scaly and may include bumps or blisters. Diaper rash, a yeast infection that affects babies because of the warm, moist environment in diapers.The rash is red, itchy, and scaly, and it may blister. Jock itch, a fungal infection, or ringworm of the groin area.Some of the most common causes of genital rashes are infections: There are many possible causes for a genital rash, ranging from infections that are easily treatable to sexually transmitted infections (STIs), allergies, and autoimmune disorders.
