Hello dear Understand your concern. I think it is blocked sebaceous h=gland that produce cyst Do not pop up that cause infection and abcess. Apply warm compression and after become soft squeeze it and apply neosporin/Bcitracin powder to prevent infections Following are the other cause of lump in vagina: skene s duct cyst Blocked hair follicle Blocked sweat gland Fordyce cyst Molluscum contagium Bartholin cyst: rare All this cyst are pain less and harmless generally. Do not pop up , it causes infection and bleeding But if it is very large and assosiated with pain, dysuria, fever, itching , redness and foul smelling vaginal discharge. Then You should think about STDs and would like to test for STDs and And consult to doctor for drainage and take antibiotics. Also maintain hygiene and keep the area dry. Hope this may help you Best regards Dr. Sagar