I am a 25 year old female with no children. My husband and I have been together for 6 years we have no extra-marital affairs and I am 100% sure of that. My right labia is swollen and is very painful to touch, even a slight breeze of air causes extreme pain. The pain is similar to a sunburn. It is painful enough to make me cry. The swelling starts from my right vulva next to my vaginal canal and goes all the way to my anus. The area with the worst pain is next to my perineum. This started as a painless lump the size of a peanut that could be palpated from within my vagina with a finger but not visible externally. This was about a week ago. Now, it is huge and painful. My labia is 3x larger than it's normal size and very red. There are no discharges, no foul smells, and it's not itchy. I am managing the pain with clobetasol topical cream and mefenamic acid oral. The pain disappears with the cream but I think it's also making the swelling bigger. I am on my third day of co-amoxyclav 625 mg (twice a day every 12 hours) but I am almost sure this is what caused the swelling in the first place. Also, I tried to do a sits bath and it only made the condition worse. Any impression or advice would be appreciated.