Ironman, I had something that sounds very similar to what you have at the top of your scar. Red, hard area with a little open area that oozed some watery, blood tinged stuff at about 5 weeks. It was a suture abcess, which sounds worse than it is. The nurse practitioner squeezed a little stuff out, & lo and behold, there was a tiny string showing, which she pulled out. It was a suture which should have dissolved but didn't, so was trying to come out through the skin. Put me on a week's worth of antibiotics as a precaution, but no further problems. Scared me beforehand, though!