I wonder what it is about February that triggers you... you don't have to answer it here, but it's something to think about (anniversary? valentines day? birthday? significant in some way?). I know I have the hardest times around large life upheavals (like my recent move) and anniversaries. Even the anniversary of the last bout of really bad self injury is somewhat triggering...
As for what to do about it? I reach out like crazy, sometimes I indulge the fantasy of engaging in si (think about it in full detail without actually doing anything... but I don't recommend it, it can be more triggering than it's worth), I remind myself of the things I will lose if I start cutting again... I journal and write a lot, I draw pictures, paint, collage... anything to get the details out. I find it works well for me so far. but again, I don't recommend it as it may be too triggering (just want to underscore that piece)... I also try to tell my new therapist, tho that is not going too well at the moment. He is only an intern, and I just started seeing him, so my trust is pretty low in him. It worked better with my old therapist, who I knew and trusted. It definitely helped to talk about it, and she would help me remember why it is that I don't want to keep doing it.
I've found the usual suggestions don't really work with me, they don't have the same impact, so my mind just writes them off... If you are up north, you could try going outside briefly without a coat to get the same shock value... but again, brielfy.
I hope you make it through the month... what was it that helped yesterday? can you keep doing that?
good luck.