HI well come to HCM.
As per your description it could be bartholin cyst
, can be due to poor hygene of the
parts. take corse of antibiotic like ciprofloxacin
, levoflaoxacin etc may help you. Since
no pain need not take pain killer. Good hygenic care of the parts will prevent reocurance.Daily cleaning parts properly with warm water etc should be useful to you.