Having Noticed Pain And Bruised On Labia Due To An Injury

I accidentally hurt myself passing my bed, smashed my left Labia against the bed post. At first it hurt but then the pain subsided, but the next day when I was washing I noticed there was a bump or something above the skin, and the area was quite swollen, only hurting when touched or when pee ran over it. Two days later its still bruised and swollen with no pain(unless I'm washing) and I haven't iced it yet but I will today. How can I speed up healing process? I'm currently on the couch with my legs elevated But ill soon move to my bed