Thanks for posting your query at DoctorSpring.com
Thank you for the illustration too.
Can you please upload an exact picture ?
There are two possibilities here.
The first is - an infected sebaceous cyst , that involves sweat glands and hair follicles that are common in this area.
The other possibility is an infected Bartholin's gland, that also is present in this area.
Please upload a picture of the area if possible.
Both require antibiotics initially, and if antibiotics fail to resolve the lesion, surgical removal is needed.
ALso, take hot Sitz bath ( soaking in a tub of warm water ) atleast 5 - 6 times a day.
You should take painkillers if the area is too painful.
Maintain meticulous perineal hygiene.
Looking forward to hearing from you.
Patient replied :
a couple hours ago it drained on its own, i've included a before and after picture (sorry for the quality, that's the best i could do haha)
Thank you for the follow up.
This very much looks like an infected sebaceous cyst.
As it has burst on its own, you do not need to do anything right now.
Just apply local Mupirocin ointment.
If it recurs, please consult a gynecologist.