I'm a 31 year old female, 5'6" and 223lbs. I went to the doctor last week for a nodule on my labia and while it was small he put me on antibotics beause he didn't want to try and drain but felt it was a sebaceous cyst. He also prescribed some lidocaine for the pain. Today is my 5th day on the anitbiocits (Keflex 500mg 4x day) and I do not see any improvement in size but is not as painful unless bothered. Should I wait until antibiotics are completed before going back?