Hello! You are describing probably what is a Bartholin Cyst. If that is the case, it usually never pains unless it gets infected or increases in size gradually. Kindly do sitz bath - sit in medium hot water, for the same and you should be fine. The white discharge, usually is a normal finding in a female genital tract. It can increase if you re about to have a period. it is considered excess if it stains your undergarment. coming to your situation, if it is smelling too much or you find it too disturbing then kindly get it checked. it may be a vaginal infection due to candidiasis, vaginosis, trichomoniasis etc. It has a good prognosis with CandidB vaginal cream to antifungals like clotrimazole 100mg for five days or Single 500mg dose once. Since these drugs need a prescription kindly visit a docotrs and let them confirm the diagnosis. Dr. Karan Shekar.