I had a mole removed on my back around 3 weeks ago and my stitches tore and the cut got wider and now is pussing, what do I do?

Thank you for your question and I am sorry to hear about your issues after mole removal.  Because of the wound issue I would recommend you see your surgeon for an in-person evaluation.  If there is an active infection you may need to have antibiotics prescribed and the incision cleaned out.  Your surgeon can also give you wound healing recommendations as you will likely need your body to heal the cut from the inside-out.  

I recommend consulting with your physician regarding the situation you describe.  He or she can evaluate the area, determine if infection is present, and provide you with advice on how to properly take care of this wound.  I hope this was helpful.Best,Dr. Wilkes"This answer has been provided without seeing this patient and cannot be
held as true medical advice, but only opinion. Seek in-person treatment
with a trained medical professional for appropriate care."

My answer to these questions is always the same:Close your computer and see your doctor.As soon as you can, please,  since you believe your wound is infected.I don't mean to sound rude, but it's common sense that you seek real in the flesh medical advice for a situation you have described.