You may want to take a sitz bath... You may be able get a kit through your pharmacy. Some women hate them, but when I tore with my last pregnancy it was very helpful.
I'm esperiencing the same problem now. Instead i have two cuts on each vagin lip at the bottom of the hole. It really burns when i urinate and it's really hard to clean that area when bathing. What should i do?
I would see your gyn or at least call the office and talk to the nurse. That is quite a tear, and concerning that you are swollen. It may be too late to stitch, but you also do not want to get an infection.