The first thing to know about a bump on the lower side is what the bump is due to. If it is an abscess of the vulva, just like a pimple on the face, only anti-inflammatory treatment is needed. You can use Bactrim and apply it topically twice a day, as well as take a sitz bath with potassium permanganate for about 10 minutes each time before going to bed to achieve the purpose of anti-inflammation. If after the above treatment, there is no significant improvement, at the same time, you can add antibiotics such as metronidazole tablets 400mg twice a day, oral treatment, a total of 7 days, usually can be cured. If the vulva bumps are caused by pseudomonal warts, then it is mainly due to the stimulation of the vulva secretions, which will not affect the daily life and usually will not disappear and do not need to be treated. If the vulva bumps are caused by lesions such as condyloma acuminata, you should visit a dermatologist and require laser and antiviral treatment.