Hello, Although red vaginal bumps are often associated with certain sexually transmitted diseases, most people who have this symptom are simply suffering from a condition known as genital acne (blocked and infected sweat lands). Being warmer than the rest of the body the bacteria grow very fast. The other factors are poor hygiene, hormonal changes, tight clothing, shaving of the area, being exposed to a humid climate and the constant rubbing of the thighs. Oral and topical antibiotic and anti inflammatory drugs along with proper hygiene will cure the condition. Best wishes