Women have a small pimple underneath, usually refers to the appearance of pimples on the vulva of the skin lesions manifestation, which may be related to warts, genital herpes, folliculitis and other diseases, usually can be taken to physical therapy, medication, and other methods to deal with. 1. warts: warts belong to a sexually transmitted disease, mainly due to infection of HPV virus caused by the situation can also appear in the female lower long a small pimple, usually manifested in the shape of a pattern or corns, and accompanied by a mild itching. Patients can usually choose physical therapy, such as freezing, photodynamic and so on. 2. Genital herpes: caused by herpes simplex virus infection, mostly transmitted through sexual misconduct, manifested as blisters, vesicles or ulcers around the genitals, and women may have a small pimple down there, often accompanied by pain or itching. Patients can apply antiviral drugs for treatment, such as acyclovir, vasiclovir, and so on. Those who are allergic to any of the above medications are prohibited from using them. 3. Folliculitis: caused by bacterial or fungal infection due to poor cleaning, etc., manifested as inflammation of the hair follicle as a unit. Bacterial infections can use fusidic acid cream, fungal infections can use amorphophallus ointment and other drugs, in addition to pay attention to light diet, pay attention to maintain local hygiene. If a woman has a small pimple underneath, it is recommended to go to the hospital in a timely manner, after clarifying the cause of the disease, to standardize the treatment, the drugs need to be used in accordance with the doctor’s instructions, in order to avoid delaying the condition.